Though it didn't shatter The Dark Knight's opening weekend record (or even come close for that matter), Iron Man 2 still pulled in a very respectable $133 million in its debut, officially welcoming the 2010 summer moviegoing season. Its $133 million was enough to give it the fifth best opening weekend on record, behind The Dark Knight, Spider-Man 3, The Twilight Saga: New Moon and Pirates of the Caribbean: Dead Man's Chest.
And where does Iron Man 2 now rank in terms of the best superhero movie sequels of all time?