Canon EOS R50 Mirrorless Camera (White) - Manual (Page 476)

Movie Playback
1.
Switch to playback.
Press the < > button.
2.
Select a movie.
Use the < >< > keys to select a movie to play.
In single-image display, the [ ] icon displayed in the upper left of
the screen indicates a movie.
In index display, perforations at the left edge of a thumbnail indicate a
movie. Movies cannot be played from index display, so press the
<
> button to switch to single-image display.
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