With “The Marvels” movie coming out by the end of the year, many people believe Captain marvel is one of the strongest superheroes around. Unfortunately, Captain Marvel is actually allergic to cats.

Captain Marvel, the superhero, isn’t allergic to cats, but Brie Larson, who plays Captain Marvel, is allergic to cats. That meant her stunt double had to fill in for her in any scene involving a real cat. Since animals can be so difficult to film and direct, the film crew relied on two cats to portray Goose, Captain Marvel’s cat.

So if you see “The Marvels,” you’ll get a chance to look for all the scenes where a real cat appears. That’s when you know Brie Larson does not appear because she’s the only superhero who can be defeated by cat hair.

To learn more about the cats in the Captain Marvel movie, click here.