WALL-E was first released in 2008. The Pixar film premiered at Los Angeles’s Greek Theatre on June 23, 2008, before its United States theatrical release on June 27. That makes 2008 the accepted answer, rather than the nearby years sometimes offered as distractors.
The story is set in the 29th century, roughly 700 years after humanity abandoned a garbage-covered Earth. Its central robot, WALL-E, continues compressing trash long after the other units have stopped working. His discovery of a living plant eventually leads him into a much larger adventure aboard the Axiom.
WALL-E was Pixar’s ninth feature film and was directed by Andrew Stanton. It was paired theatrically with the short film Presto, a Pixar tradition. The film became a major critical and commercial success, earning the Academy Award for Best Animated Feature and becoming one of the best-known environmentally themed animated films.