I just saw the movie Confidence, and while it was not the best cinema turn, i think that if a Godfather Part IV were to be made and they used a dual story, then Edward Burns would be perfect for Sonny. He looks like James Caan, has the same manner of speaking, and carries himself the same way as the Sonny character. If they signed up Andy Garcia, Robert De Niro, and Edward Burns, this GF might not be half bad (well, acting-wise.)
-Zasa