Setting a Movie’s Poster Frame
A poster frame is a still image of a movie that represents the movie in places like the
QuickTime Player Favorites window and the Finder. The default poster frame is the first
frame in the movie. With QuickTime Pro, you can change the poster frame.
To change a movie’s poster frame:
In QuickTime Player, drag the playhead (or use the arrow keys to move the playhead) to
the desired frame.
Choose View > Set Poster Frame.
To view a movie’s poster frame, choose View > “Go to Poster Frame.”