There's a good chance the new Avengers movie could break box office records!
The record for best opening weekend for a superhero movie in the U.S. so far is held by the first "Avengers" movie, with $207.4 million. "Infinity War" is expected to surpass that at an estimated $225 million.
The current overall record for an opening weekend in the U.S. is held by "Star Wars: The Force Awakens" at $248 million and some experts think "Infinity War" has a chance at topping that, too.
Even if it "only" hits $225 million, that's still good enough for second place. Second place is "Star Wars: The Last Jedi", with $220 million.
Check out this list of the biggest box office openings. Note how many are superhero movies!