Try uninstalling and reinstalling bro

Hey, just sharing the information if you still need it, found this Steam forum thread with some fixes:

https://gtm.steamproxy.vip/app/333980/discussions/0/492378265876498144/#c492378806383618322

Didn't work for me but helped me realize the problem was with the video files so I just checked the box "Disable Movies" in the settings window that appears when you open the game.

https://i.imgur.com/TJvaMYU.png

and the game loaded the main menu afterwards. Hope it helps!
PD. You can still watch the movies if you want, they are in the game files.