Aliens in the Attic is a 2009 American science fiction comedy film directed by John Schultz and written by Mark Burton and Adam F. Goldberg, based on an original story conceived by Burton. Starring Carter Jenkins, Austin Butler, Ashley Tisdale, Gillian Vigman, Andy Richter, Doris Roberts, Robert Hoffman, Kevin Nealon, Tim Meadows, and the voices of Josh Peck, J. K. Simmons, Kari Wahlgren, and Thomas Haden Church, the plot revolves around the children in the Pearson family defending their vacation home against a group of aliens, who are planning an invasion of Earth until one of the aliens betrays them and joins the Pearson children in battle.

Produced by Regency Enterprises and Dune Entertainment, Aliens in the Attic was released theatrically by 20th Century Fox on July 31, 2009, in the United States. The film received mixed reviews from critics and grossed $59.6 million on a $45 million budget.