For certain videos, you may need to loop or stretch a video to match the timing of your script.
To loop or stretch your video:
Navigate to the scene and select the video on the canvas.
Select one of the options from the Video panel on the right hand side of the canvas:
Play Once
Stretch
Cut / Loop
Select the chosen option updates the video within your scene.
Learn more about these option on the media reference documentation.
Want to trim your video? See the how do I trim a video? article.