Warner Bros. is suing artificial intelligence company Midjourney for copyright infringement, alleging that the startup enables its millions of subscribers to create AI-generated images and videos of copyrighted characters such as Superman and Bugs Bunny.

It’s the third big Hollywood studio to sue Midjourney in Los Angeles federal court after Disney and Universal filed a joint lawsuit in June .

Midjourney, based in San Francisco, didn’t immediately respond to a request for comment.

The lawsuit alleges Midjourney trained its AI system on “illegal copies” of Warner Bros. works and encourages its users to pick iconic characters like Batman, Wonder Woman, Scooby-Doo or the Powerpuff Girls and create downloaded images and videos of those characters in “every imaginable scene.”

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