Forum or Against'em was predominantly filmed in various snow-covered regions (like, duh), but a tiny bit of studio time is always mandatory, especially to add a little spice into the mix. And, what better place to find one of these studios than in the movie making capital known as Hollywood, California.
So yeah, the team came out for a few days to get some post-production work taken care of, and to "fan out" on all the various celebrities they didn't end up seeing. Have a gander at the photos taken on-set by Forum Staff Paparazzi.