Alec Baldwin in Heaven's Prisoners
AB is a fine actor, generally, but he falls way short in this flick because he's just not tough enough. As a jailhouse actor, that interests me as a prime illustration of the limitations inherent in casting; I know that movies are all about illusion, but acting/set dressing/photography, etc. can only do so much before reality peeps through.
Movies, by and large, are mostly made by people who never even got into a fight on the middle school playground, yet these people direct and portray, with the help of lots of smoke and mirrors, a huge plethora of violent action. In a gentler vein, check out Ryan O'Neal's lame portrayal of a man of his time in Barry Lyndon; as usual when an actor chops wood in a film, it's obvious that RO never chopped wood in his life. It's as believable as Richard Simmons would be in trying to play Jack Dempsey.
I guess that's part of why DeNiro is such a big star.