The X-Men series helped kickstart a new age of successful comic book film franchises at the turn of the century. If not for X-Men, there might not be an MCU or DCEU. And, considering there are 13 films in the franchise, there's a lot that went into making them that the average fan may not know.
This list highlights some of the more interesting things you didn't know about the X-Men movies, and many of them might surprise you. If you discover a fun fact you didn't already know, go ahead and give it an upvote to see which one rises to the top.