X-Men (2000)

Based off of the comic book. The time is the near future. There is a rift between normal humans and mutants. These mutants have gifts, these gifts can give them supernatural powers. Professor Charles Xavier has established a school where mutants can feel accepted and can learn to control their gifts. One day, a young girl calling herself "Rougue" runs away from home when she discovers her mutant gift. Then, she met a loner named Logan, then they were attacked by a group of mutants and were discovered by some of Proffessor X's students. They found out that the mutants that attacked them were a part of another mutant organization lead by "Magneto". Magneto believes that this dispute between humans and mutants will escalate into an all out war. He has also built a device that will unnaturally mutates humans. Now, Professor X's students must use their powers to stop Magneto, before it is too late.

X-Men: First Class (2011)

aka: X-Men First Class

In 1963, Charles Xavier starts up a school and later a team, for humans with superhuman abilities. Among them is Erik Lensherr, his best friend… and future archenemy.Before Charles Xavier and Erik Lensherr took the names Professor X and Magneto, they were two young men discovering their powers for the first time. Before they were archenemies, they were closest of friends, working together, with other Mutants (some familiar, some new), to stop the greatest threat the world has ever known. In the process, a rift between them opened, which began the eternal war between Magneto’s Brotherhood and Professor X’s X-MEN.

X - The Unknown (1956)

X - The Unknown: British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a "bottomless" crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to "absorb" radiation from any source, growing bigger and bigger. What is it?? How do you destroy a thing that "feeds" on energy?