Seat-fillers ensure the audience on screen looks full to the viewers at home, and the position comes with its perks.

As the premiere of "F1: The Movie" approaches, Regal Cinemas and Cinemark are racing to the front of the pack with merchandise to rev up excitement.

As the premiere of "F1: The Movie" approaches, Regal Cinemas and Cinemark are racing to the front of the pack with merchandise to rev up excitement.