PALM DESERT, Calif. -

UC Riverside's Palm Desert campus will mark Earth Day tonight with a screening of the Pixar animated film ``WALL-E.''

The 6 p.m. free screening will also conclude UCR's ``Living Green'' lecture series, which started earlier this year.

``WALL-E,'' which won the Academy Award for best animated feature in 2008, has been seen as a commentary about humans' interaction with the environment.

The film is set in 2700, when Earth is no longer inhabitable by people, and follows robot WALL-E, who gathers trash and collects odds and ends.

To RSVP, go to http://palmdesert.ucr.edu