Aliens in the Attic (PG) A group of kids must protect their vacation home from invading aliens. The Collector (R) Desperate to repay a debt, an ex-con plots a heist, unaware that a second criminal has his eyes on the same prize. Funny People (R) Judd Apatow's latest features Adam Sandler as a comedian with a terminal disease. With Seth Rogen and Eric Bana. Humpday (R) Two old friends find themselves pledging to film a gay pornographic video. In the Loop (Not rated) A satire that has U.S. and British officials at odds over war. $9.99 (R) A stop-motion animated story about people living in a Sydney apartment building and looking for meaning in their lives. Shrink (R) Kevin Spacey, psychiatrist to the stars, starts falling apart. Soul Power (PG-13) A documentary of the 1974 concert in Zaire featuring James Brown, B.B. King and Bill Withers, staged in conjunction with the Ali-Foreman "Rumble in the Jungle" boxing match.