With Iron Man 2 whipping everyone into a frenzy, and the promise of Thor and The First Avenger: Captain America for 2011, talk has turned to what Marvel movies to put out after The Avengers in 2012. Or even sooner; after all, the movies they're talking about aren't big blockbusters, they're smaller, less expensive films starring lesser-known Marvel characters. The best-case scenario would be 1998's Blade, which spawned a trilogy; the worst would be The Punisher series, or the straight-to-DVD Man-Thing. Of the thousands of Marvel characters in existence, several are being discussed (including sorcerer supreme Dr. Strange and urban hero Luke Cage) and films are already in the works for shrinking Avenger Ant-Man and the villain-spawn Runaways. But there are a ton of superheroes we'd love to see get the big-screen treatment, perhaps with an A-list hero making a cameo appearance. Here are a few that we think have big-screen potential.