During an interview with Collider's 'Frosty' Weintraub, 'The Avengers' Mark Ruffalo was asked about being offered a multi-picture deal to keep playing Dr. Banner and his big green alter ego. There have been numerous claims that Ruffalo's Hulk steals the show in Joss Whedon's highly-anticipated superhero team-up, which opens this week. Well it looks like there will be plenty more RuffaHulk in our…