"X-Men: The Last Stand" is the third film in the X-Men series, released in 2006. The story revolves around a "cure" for mutation that threatens the existence of mutants, leading to a conflict between the X-Men and the Brotherhood of Evil Mutants, led by Magneto. The film features key characters such as Wolverine, Storm, and Jean Grey, who undergo significant transformations. As the battle escalates, themes of acceptance, identity, and the consequences of power are explored, culminating in a dramatic showdown that tests the loyalties and beliefs of all involved.