When I import a mp4 file to edit, in my edit screen it doesn't show the entire frame of the raw video. The final output also does not show the entire frame, just part of the frame. I use a MacBook Air.

When I import a mp4 file to edit, in my edit screen it doesn't show the entire frame of the raw video. The final output also does not show the entire frame, just part of the frame. I use a MacBook Air.