Marvel superhero movies are some of the most entertaining, commercially successful, and critically acclaimed movies in today’s film industry. While some of this success can be attributed to the great source material, much of it has to do with directing.

Some of the franchise’s most successful films, Captain America: The Winter Soldier and Captain America: Civil War were directed by Anthony and Joe Russo. The brothers are set to direct the upcoming Avengers: Infinity War and its sequel. Although fans understandably know the duo best for their work with these blockbuster superhero films, their background is actually highly interesting. Here are five of the most interesting facts about the Russo brothers.