The IMAX theater at IMAX's HQ has 80-foot wide screen, which translates to 1,100 inches. It's about 20% bigger than your average movie theater screen, Hilsenteger said.
Hilsenteger said during the video that the purpose to use such a large screen is for "ultimate immersion."
"It extends below you, it extends above you," he said.
Hilsenteger played Fortnite on a PlayStation 4 Pro that can output a 4K video signal. Having that 4K video option would help make the game look sharp on such a large screen. If he played games in regular 1080p resolution on such a big screen, like you would on the regular PlayStation 4, the graphics and visuals wouldn't be as impressive.