What you'll miss: A very upset Tony Stark yelling, "We failed!" at everyone, especially Captain America. (If you REALLY have to pee early on into the movie, this is your best time to go.)

Time you have to pee: About 3 minutes.

Best time to pee #2: After the first scene with Thanos.

What you'll miss: The screen cutting to black and a time jump. There's a quick montage of NY and we see Captain America in a support group saying, "We've got to move on."