If you want to see a good body swap movie, go see Big (the best), Face Off (also a classic), 13 Going on 30, All of Me, Freaky Friday, 17 Again, heck, even the Change Up.
But The Big Fix is simply terrible. The characters are idiots, the writing is tone deaf as to how people talk and act in the real world, the direction is clumsy, the acting is amateurish, the extras look like zombies, and there's an annoying series of gaps between dialogue, as though the actors were trying to remember their next lines. Ugh.
I'm not a fan of faith based movies, but some of the pastor's messages (about being selfless and focusing on the future rather than the past) were actually good healthy messages. But the movie is just awful.
And what's with the "break a leg" nonsense?
Avoid this.