By Kate Ward
November 21, 2011 at 02:00 PM EST
Alex Bailey

Robert Downey Jr., has played many characters over his decades-long career in Hollywood, but his role as box office juggernaut is a relatively new one. Prior to starring in 2008’s Iron Man, which raked in over $300 million in the box office, Downey mostly starred in artsy projects, or as a standout supporting character alongside the likes of Woody Harrelson and (believe it or not) Tim Allen.

That’s not to say Downey doesn’t deserve acclaim for his less popcorn-y projects. Even though we look forward to seeing the actor in films like the upcoming Sherlock Holmes: Game of Shadows, Downey unleashed some of his best work pre-Iron Man. Just see the fascinating, quietly funny Chaplin and the appealing, uproariously funny Kiss Kiss Bang Bang. But, looking at the actor’s long resumé, which was Downey’s best film?

It’s a tough question to answer. Downey is one of those rare actors who has managed to master every genre of film: Drama (Wonder Boys), Comedy (Tropic Thunder), Thriller (Zodiac), Biopic (Chaplin), Period (Sherlock Holmes), and Superhero (Iron Man). It basically boils down to your personal preferences as a moviegoer — Downey is pitch-perfect in nearly every film he stars in, so what type of film do you like most? Even though I’m a comedy fan, I’m partial to Zodiac. Perhaps it’s because I’m a reporter — or because, playing an alcoholic journalist, former addict Downey unveils a breathtakingly self-aware performance — but I consistently feel 157 minutes worth of goosebumps watching the David Fincher-directed flick.

But how about you, PopWatchers? What’s your favorite Robert Downey Jr., film?

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