With The Gunman hitting theatres this weekend, Sean Penn is the latest aging Hollywood star trying to prove he can still handle a no nonsense action flick. But whether or not this proves to be a new career path for him, it won’t change the fact that he has already starred in a ton of great films over the years. He has mostly focused on fairly serious dramas (with a handful of Oscar wins under his belt to prove it), but that’s not to say he has totally shied away from comedies or genre films either. Penn has also directed some solid films as well, but we’ve left them out of this poll in order to concentrate on Sean Penn the actor. So what do you think is Sean Penn’s finest work to date? Cast your vote in this week’s poll and then sound off in the comments below.