CHANGING SCENES A series of films about “radical identity adjustment” includes screenings of “The Gift,” about a group of gay men who try to become HIV positive; “American Eunuchs: Designed Identities,” about men who voluntarily choose castration, and “Whole,” about individuals who try to get rid of a limb. The evening ends with a panel discussion, featuring moderator Claus Mueller; a psychologist at Pace University, Herbert Krauss; performance artist Genesis P. Orridge, and others. Tonight, 6 p.m., Anthology Film Archives, 32 Second Ave. at 2nd Street, 212-505-5181, $8, $5 seniors and students.

PIXAR PIXELS A screening series of Pixar films includes “Toy Story” (Tuesday, 1 p.m.), “A Bug’s Life” (Tuesday, 3:30 p.m.), “Finding Nemo” (Wednesday, December 28, 1 p.m.), and “The Incredibles” (Wednesday, December 28, 3:30 p.m.). Each screening is preceded by a Pixar short film. The series is pre sented in conjunction with exhibit “Pixar: 20 Years of Animation.” Tuesday and Wednesday, 1 p.m., Museum of Modern Art, 11 W. 53rd St., between Fifth and Sixth avenues, 212-708-9400, $10 general, $8 seniors, $6 students.

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