diff --git a/signbank/dictionary/templates/dictionary/edit_annotated_sentence.html b/signbank/dictionary/templates/dictionary/edit_annotated_sentence.html
index ce0cefc76..bb800bc80 100644
--- a/signbank/dictionary/templates/dictionary/edit_annotated_sentence.html
+++ b/signbank/dictionary/templates/dictionary/edit_annotated_sentence.html
@@ -33,13 +33,26 @@
         <br><br>
         <input type="checkbox" id="trim-video-checked" name="trim-video-checked" role="button" value="off"> {% trans 'Shorten the video' %}
         <div id="trim_video">
-            {% trans "Instructions: slide to a point in the video and set it as start and/or end point" %}<br>
-            <button type="button" id="start-button" class="btn btn-primary" data-dismiss="modal">{% trans "Set new start point" %}</button>
-            Start: <input type="text" id="start-point" name="start-ms" value="0" readonly><br>
-            <button type="button" id="end-button" class="btn btn-primary" data-dismiss="modal">{% trans "Set new end point" %}</button>
-            End: <input type="text" id="end-point" name="end-ms" value="{{ annotated_sentence.annotatedvideo.get_end_ms }}" readonly><br>
-            <button type="button" id="reset-trim" class="btn btn-primary" data-dismiss="modal">{% trans "Reset" %}</button>
-            <span id="trim-feedback"></span>
+            {% trans "Slide to a point in the video and click 'Set' to define it as the new start and/or end point" %}<br>
+            <table class='table' style="width:70%">
+                <tr>
+                    <td style="width:50%">
+                        Start: <input type="text" id="start-point" name="start-ms" value="0" readonly>
+                        <button type="button" id="start-button" class="btn btn-primary" data-dismiss="modal">{% trans "Set" %}</button>
+                    </td>
+                    <td style="width:50%">
+                        End: <input type="text" id="end-point" name="end-ms" value="{{ annotated_sentence.annotatedvideo.get_end_ms }}" readonly>
+                        <button type="button" id="end-button" class="btn btn-primary" data-dismiss="modal">{% trans "Set" %}</button>
+                    </td>
+                </tr>
+                <tr>
+                    <td colspan="2">
+                    <button type="button" id="reset-trim" class="btn btn-primary" data-dismiss="modal">{% trans "Reset" %}</button>
+                    <span id="trim-feedback"></span>
+                    </td>
+                </tr>
+            </table>
+            
         </div>
 
         <style>
@@ -65,7 +78,7 @@
                 var currentTime = (video.currentTime * 1000).toFixed(0);
                 var endValue = parseInt(endPoint.value, 10); 
                 if (!isNaN(endValue) && currentTime > endValue) {
-                    feedback.innerHTML = "Start point must be before end point";
+                    feedback.innerHTML = '<font color="red">Start point must be before end point</font>';
                 } else {
                     startPoint.value = currentTime;
                     feedback.innerHTML = "";
@@ -76,7 +89,7 @@
                 var currentTime = (video.currentTime * 1000).toFixed(0);
                 var startValue = parseInt(startPoint.value, 10); 
                 if (!isNaN(startValue) && currentTime < startValue) {
-                    feedback.innerHTML = "End point must be after start point";
+                    feedback.innerHTML = '<font color="red">End point must be after start point</font>';
                 } else {
                     endPoint.value = currentTime;
                     feedback.innerHTML = "";
diff --git a/signbank/dictionary/templates/dictionary/gloss_detail.html b/signbank/dictionary/templates/dictionary/gloss_detail.html
index 72b4c95fe..71ae1206f 100755
--- a/signbank/dictionary/templates/dictionary/gloss_detail.html
+++ b/signbank/dictionary/templates/dictionary/gloss_detail.html
@@ -1202,7 +1202,7 @@ <h2 id='modalTitleSimilarSense'>{% trans "Similar senses" %}</h2>
                                                         <span class = "sense-icon pull-right"><a href='{% url "dictionary:add_sentence_video" glossid=gloss.id examplesentenceid=examplesentence.id %}'><img src='{{STATIC_URL}}images/addvideo.png' style="width:25px; height:25px; margin: 0px; cursor: pointer;"></a></span>
                                                         {% if examplesentence.has_video %}
                                                             <span class="sense-icon pull-right">
-                                                                <form class="formbutton" action="{{PREFIX_URL}}/video/deletesentence_video/{{examplesentence.id}}" method='post'>
+                                                                <form class="formbutton" action="{{PREFIX_URL}}/video/deletesentencevideo/{{examplesentence.id}}" method='post'>
                                                                 {% csrf_token %}
                                                                 <input type=image value="" src='{{STATIC_URL}}images/deletevideo.png' alt = "submit" style='width: 25px; height: 25px; margin: 0px; cursor: pointer;'>
                                                                 </form>
diff --git a/signbank/dictionary/urls.py b/signbank/dictionary/urls.py
index 3286d8be0..6b84af2d7 100755
--- a/signbank/dictionary/urls.py
+++ b/signbank/dictionary/urls.py
@@ -55,7 +55,7 @@
     re_path(r'^update/examplesentence/(?P<examplesentenceid>\d+)$', signbank.dictionary.update.update_examplesentence, name='update_examplesentence'),
     re_path(r'^update/addexamplesentence/(?P<senseid>\d+)$', signbank.dictionary.update.create_examplesentence, name='create_examplesentence'),
     re_path(r'^update/deleteexamplesentence/(?P<senseid>\d+)$', signbank.dictionary.update.delete_examplesentence, name='delete_examplesentence'),
-    re_path(r'^update/addsentence-video/(?P<glossid>\d+)/(?P<examplesentenceid>\d+)$', signbank.dictionary.update.add_sentence_video, name='add_sentence_video'),
+    re_path(r'^update/addsentencevideo/(?P<glossid>\d+)/(?P<examplesentenceid>\d+)$', signbank.dictionary.update.add_sentence_video, name='add_sentence_video'),
     re_path(r'^update/addannotatedmedia/(?P<glossid>\d+)$', signbank.dictionary.update.add_annotated_media, name='add_annotated_media'),
     re_path(r'^update/updateannotatedsentence/(?P<glossid>\d+)/(?P<annotatedsentenceid>\d+)$', signbank.dictionary.update.edit_annotated_sentence, name='edit_annotated_sentence'),
     re_path(r'^update/saveeditannotatedsentence/', signbank.dictionary.update.save_edit_annotated_sentence, name='save_edit_annotated_sentence'),
diff --git a/signbank/video/models.py b/signbank/video/models.py
index c1b205505..66674f2b7 100755
--- a/signbank/video/models.py
+++ b/signbank/video/models.py
@@ -497,6 +497,7 @@ def __str__(self):
         return self.videofile.name
     
     def convert_milliseconds_to_time_format(self, ms):
+        """Convert milliseconds to a time format HH:MM:SS.mmm"""
         milliseconds = ms % 1000
         seconds = (ms // 1000) % 60
         minutes = (ms // (1000 * 60)) % 60
@@ -504,6 +505,8 @@ def convert_milliseconds_to_time_format(self, ms):
         return f"{hours:02}:{minutes:02}:{seconds:02}.{milliseconds:03}"
 
     def select_annotations(self, eaf, tier_name, start_ms, end_ms):
+        """ Select annotations that are within the selected range """
+        
         keys_to_remove = []
         for key in eaf.tiers[tier_name][0]:
             annotation_list = list(eaf.tiers[tier_name][0][key])
@@ -529,66 +532,50 @@ def select_annotations(self, eaf, tier_name, start_ms, end_ms):
             del eaf.tiers[tier_name][0][key]
 
     def cut_video_and_eaf(self, start_ms, end_ms):
-        # cut both the video and the eaffile annotations
+        """cut both the video and the annotation file (eaf) to the selected range"""
+
         import subprocess
+        from pathlib import Path
         from pympi.Elan import Eaf
 
         start_ms, end_ms = int(start_ms), int(end_ms)
-        duration_ms = end_ms - start_ms
         start_time = self.convert_milliseconds_to_time_format(start_ms)
         end_time = self.convert_milliseconds_to_time_format(end_ms)
-        duration_time = self.convert_milliseconds_to_time_format(duration_ms)
         
-        from pathlib import Path
+        # Cut the video
         input_file = Path(self.videofile.path)
         temp_output_file = Path(os.path.join(os.path.split(input_file)[0], 'temp.mp4'))
-        command = [
-        'ffmpeg',
-        '-i', input_file,
-        '-ss', start_time,  # Seek to the start time
-        '-to', end_time,  # Specify the duration
-        '-c:v', 'libx264',
-        '-c:a', 'aac',
-        '-y',  # Overwrite the output file without asking
-        temp_output_file
-        ]
-    
-        # Open subprocess
+        command = ['ffmpeg', '-i', input_file, '-ss', start_time, '-to', end_time, '-c:v', 'libx264', '-c:a', 'aac', '-y', temp_output_file]
         process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-
-        # Communicate and wait for process to finish
-        stdout, stderr = process.communicate()
+        _, stderr = process.communicate()
         stderr_str = stderr.decode('utf-8')
-
         if process.returncode != 0:
             raise RuntimeError(f"ffmpeg error: {stderr_str}")
         else:
             # Overwrite the original file with the cut video
             overwrite_command = ['mv', temp_output_file, input_file]
             process = subprocess.Popen(overwrite_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-            stdout, stderr = process.communicate()
+            _, stderr = process.communicate()
             stderr_str = stderr.decode('utf-8')
-            
             if process.returncode != 0:
                 raise RuntimeError(f"File overwrite error: {stderr_str}")
     
+        # Cut the eaf
         eaf = Eaf(self.eaffile.path)
         eaf.timeslots['ts1000'] = start_ms
         eaf.timeslots['ts1001'] = end_ms
-        
         self.select_annotations(eaf, 'Sentences', start_ms, end_ms)
         self.select_annotations(eaf, 'Glosses R', start_ms, end_ms)
         self.select_annotations(eaf, 'Glosses L', start_ms, end_ms)
-
+        # shift the timeslots to start at 0
         for key in eaf.timeslots:
             eaf.timeslots[key] -= start_ms
         eaf.clean_time_slots()
-
+        # link the new video file
         eaf.remove_linked_files()
         eaf.remove_secondary_linked_files()
         relpath = os.path.split(Path(self.videofile.path))[1]
         eaf.add_linked_file(str(self.videofile.path), str(relpath), 'video/mp4', 0)
-
         eaf.to_file(self.eaffile.path)
 
 
diff --git a/signbank/video/urls.py b/signbank/video/urls.py
index 1208a3c6f..4cd55f025 100755
--- a/signbank/video/urls.py
+++ b/signbank/video/urls.py
@@ -8,7 +8,7 @@
     re_path(r'^video/(?P<videoid>\d+)$', signbank.video.views.video),
     re_path(r'^upload/', signbank.video.views.addvideo),
     re_path(r'^delete/(?P<videoid>\d+)$', signbank.video.views.deletevideo),
-    re_path(r'^deletesentence_video/(?P<videoid>\d+)$', signbank.video.views.deletesentence_video),
+    re_path(r'^deletesentencevideo/(?P<videoid>\d+)$', signbank.video.views.deletesentencevideo),
     re_path(r'^process_eaffile/', signbank.video.views.process_eaffile, name='process_eaffile'),
     re_path(r'^create_still_images/', permission_required('dictionary.change_gloss')(signbank.video.views.create_still_images))
     ]
\ No newline at end of file
diff --git a/signbank/video/views.py b/signbank/video/views.py
index 1be663c7c..7b4c6204b 100755
--- a/signbank/video/views.py
+++ b/signbank/video/views.py
@@ -180,7 +180,7 @@ def process_eaffile(request):
 
 
 @login_required
-def deletesentence_video(request, videoid):
+def deletesentencevideo(request, videoid):
     """Remove the video for this gloss, if there is an older version
     then reinstate that as the current video (act like undo)"""