X2 (also known as X2: X-Men United) is a 2003 American superhero film directed by Bryan Singer, featuring an ensemble cast including Patrick Stewart, Hugh Jackman, and Halle Berry. The plot revolves around Professor Xavier and the X-Men team facing anti-mutant sentiment led by Colonel William Stryker, and their alliance with Magneto and Mystique to counter Stryker's genocidal plan.