Pretty simple formula: if you like Frankie/Malcolm, you'll obviously like his movies...as I do. He's never been in a movie masterpiece but I think everything he did was quite entertaining. My favorite movie I would say is "My Dog Skip"..nice, decent and well-played. In my opinion he should do more "drama-like" movies, the horror genre is quite a risky business (I know what I'm talking about, besides all my devotion to MITM, I'm a big fan of that genre...I've seen a lot of the movies and I own a lot of interesting ones )
Frankie taking this step won't put him back at all but unfortunately it won't put him forward, either. That's my thought.