The Day the Earth Blew Up: A Looney Tunes Movie is a 2024 American animated science fiction comedy film produced by Warner Bros. Animation. Directed by Pete Browngardt in his feature directorial debut, the film is a spin-off from the Looney Tunes Cartoons series developed by Browngardt, and is the first fully animated and theatrically released film in the Looney Tunes franchise consisting of entirely original material. It features the voices of Eric Bauza, Candi Milo, and Peter MacNicol. The film follows Daffy Duck and Porky Pig as they try to save Earth from a chewing gum-based alien scheme.

In 2019, while working on Looney Tunes Cartoons, Browngardt was asked if he had any ideas for a new Looney Tunes feature film. Browngardt eventually settled on the premise of a "sci-fi B-movie from the '50s," starring Daffy and Porky. He took inspiration from features of the era and shorts starring the cartoon duo. Warner Bros. Animation, alongside several vendors, provided the animation for the film, of which its character designs were modeled after the style of animator Bob Clampett. Joshua Moshier, who previously worked on Looney Tunes Cartoons, composed the film's score.

Upon its announcement in 2021, The Day the Earth Blew Up was originally set to be released on HBO Max and the "ACME Night" block on Cartoon Network. The film however premiered at the Annecy International Animation Film Festival on June 11, 2024, and had a limited release in the United States on December 13, 2024, by Ketchup Entertainment, before expanding wide on March 14, 2025. The film received generally positive reviews from critics and has grossed $11.6 million worldwide against a budget of $15 million.