Thor's posts hit like his hammer. Chris Hemsworth celebrated his co-star's birthday with two epic Instagram pictures:
Robert Downey Jr's birthday was yesterday - but it's still yesterday in USA today, so happy birthday, Iron Man.
Robert Downey Jr's impressive body of work includes a Oscar-nominated turns as Charlie Chaplin in Chaplin and a white actor pretending to be black in Tropic Thunder, as well as acclaimed performances in films like Zodiac and the two Sherlock Holmes films. But it's as Tony Star/Iron Man that he's now adored the world over and regularly tops the Forbes list of highest-paid stars. RDJ has starred as the billionaire playboy and inventor by day, superhero also by day in three Iron Man films, two Avengers films, the third Captain America film, and will also star in the upcoming reboot Spider-Man: Homecoming, playing mentor to the young Peter Parker. He will also reprise the role in Avengers: Infinity War next year and has signed on for the new Doctor Dolittle film.