• X-Men: Apocalypse (2016)
• X-Men: Days of Future Past (2014)
• X (2022)
• X (2011)
• X: The Movie (1996)
• X+Y (2014)
• X-Men: The Mutant Watch (2000)
• X-Deal 2 (2022)
• X-Cross (2007)
• X: The Unknown (1956)
• X-Large (2011)
• X-Cop Girls (2000)
• X Imp (1999)
• X/Y (2014)
• Xtinction: Predator X (2010)
• X: An Omen (2001)
• X Game (2010)
• X-15 (1961)
• X-Girl (1995)
• X-Deal (2011)
• X-Rated (1994)
• X (1983)
• X-Men (2000)
• X&Y (2018)
• X (2002)
• X: Past Is Present (2015)
• X - The eXploited (2018)
• X&Y (2024)
• X (1986)
• X Moor (2014)