Robert Downey Jr. Wears Iron Man Hat!

Robert Downey Jr. and his producer wife, Susan, are all smiles as they arrive home via LAX airport in Los Angeles after a flight from London. The 43-year-old actor supported his own superhero flick, wearing an Iron Man cap.

RDJ has been busy in London filming his upcoming detective movie, the Guy Ritchie-directed Sherlock Holmes. Stills from the movie were recently released, showing a shirtless Sherlock looking kinda bloody.