20 Things You Somehow Missed In X-Men
18. The Xavier School Is The Mansion From Billy Madison
If the Xavier School in the movie looks familiar in a way that you can't quite put your finger on, no, your brain isn't deceiving you.
The exteriors of the X-Mansion were filmed at Casa Loma, Ontario, which has been a popular location for movies and TV shoots for many decades.
But the lavish mansion got one of its more notable showings in the 1995 Adam Sandler comedy Billy Madison, serving as Billy's (Sandler) fancy homestead.
Considering how distinctive a location Casa Loma is and how prominently it's featured in Billy Madison, it's impressive that X-Men got away with it, honestly.