The final battle on Alcatraz Island is one of the largest set pieces in the franchise. Look for the creative ways the mutants combine their powers.
There is a post-credits scene that is crucial for understanding the fate of a major character. 5. Why It’s Controversial X-Men 3 The Last Stand
Is being a mutant a "disease" to be cured or a "gift" to be embraced? The final battle on Alcatraz Island is one