Robert Downey Jr. turns 48 this week, and in honor of the Iron Man's birthday, we've snagged pictures from 48 of his movies. He's had quite a career and we've got all the highlights, starting all the way back in 1985 with Tuff Turf and continuing through the '80s, '90s, '00s, and now. We even grabbed a pic of him as Tony Stark in this year's highly anticipated superhero flick Iron Man 3! One thing is for sure, RDJ has one of the most varied résumés out there, so peruse the gallery and let us know which role was your favorite. And from our hearts to yours, happy birthday, Robert Downey Jr.!