The title certainly tells you where the extraterrestrials are in this comedy-fantasy, which is likely to play better with younger viewers.

Several siblings anticipate a dull summer vacation until they encounter the title visitors, and it's up to the kids to thwart the invasion.

Ashley Tisdale ("High School Musical") is the best-known of the young actors, but veteran talent Doris Roberts ("Everybody Loves Raymond") steals the show as a grandma whose skills come in quite handy. Kevin Nealon, Tim Meadows and Conan O'Brien sidekick Andy Richter also star. Thomas Haden Church ("Sideways") is among the voice-only talents here.

DVD extras: three "making-of" documentaries; deleted scenes; outtakes; introduction by Tisdale; animated short subject; digital copy of the movie. *** (PG: AS, P, V) (Also on Blu-ray)

Buy 'Aliens in the Attic' on DVD.