That's too bad. This should have been right up your alley sounds like
I think the use of unknowns helped me get lost in the movie. In fact it wasn't until a familiar actor appeared that I kind of got pulled out of it (and the audience reacted to him as well). On top of being famous, he's a really weird looking dude, so he stood out from the rest of the characters, and kind of reminded you that you're watching a movie.. He was good in the role, but just weird, like why is Dr. Strange in this bunker?