What do you do when your birthday happens to coincide with the release of "Captain America: The Winter Soldier"? If you're "Iron Man" and "Avengers" actor Robert Downey Jr., you grab some kids and take them to the movies.

"What better way to spend my birthday than recognizing the cosmic miracle of 'Captain America 2' opening the same day?" Downey posted early Friday morning on Facebook. "Gonna wrangle about twenty kids to watch it with and partaaaaaaaaaaaaay Marvel-style!!!"

Later that day, he posted a photo of the party:

Considering the references the movie made to his character, Tony Stark, no doubt it was a fun way to spend the day.