How long is Ben Vereen in this for?

OK, I at first didn't have any interest in this movie, but after finding out Ben Vereen was in this, I got quite excited. I'm not a huge OutKast fan, but I AM a huge BV fan, I'm wondering, how long is he in this for? I may rent it just for him.

"Enter the room where gold will turn to rust" - Bruce Dickinson, Taking the Queen