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Warner Bros. has launched a blockbuster legal battle, filing suit against AI image and video platform Midjourney in California federal court on Thursday. The studio accuses Midjourney of brazen copyright infringement, alleging the company knowingly enables users to generate unauthorized images of iconic characters like Superman, Batman, Bugs Bunny, and Scooby-Doo.

The complaint accuses Midjourney of behaving as if it is “above the law,” profiting from piracy while refusing to implement safeguards to prevent the misuse of copyrighted works.

“Midjourney has made a calculated and profit-driven decision to offer zero protection for copyright owners,” Warner Bros. argued, adding that the platform already has the technical ability to block infringing content but deliberately chose not to.

A Pattern of Infringement

The lawsuit includes AI-generated images of Superman, Wonder Woman, Tweety Bird, and Scooby-Doo, allegedly created on Midjourney’s platform. According to Warner Bros., even generic prompts like “classic comic book superhero battle” can result in reproductions of its copyrighted characters.

The filing also notes how Midjourney’s system distinguishes styles — for example, generating one type of image when prompted with “The Joker, DC comic book character,” and another when asked for “The Joker, 1970s animated cartoon character.”

Warner Bros. contends the ability to generate such images strongly suggests Midjourney trained its model using copyrighted works, reformatting them before feeding them back into its AI system. The company says this capability is a major draw for subscribers.

Discord Evidence and Crossovers

Screenshots from Midjourney’s Discord server feature users flaunting creations of Warner Bros. characters, sometimes crossing universes in mashups. One image cited in the complaint depicts Batman with R2-D2 on Dagobah — a “Star Wars” planet — reimagined “in the style of Tim Burton.”

Warner Bros. claims these examples reveal a rampant culture of infringement baked into the Midjourney platform.

Not the First AI Clash

This suit follows similar legal action filed in June by Disney and Universal, who accused Midjourney of allowing users to generate images of characters from “The Simpsons,” “Star Wars,” and “Shrek.”

Warner Bros. said its move was necessary to defend decades of creative investment.
“The heart of what we do is develop stories and characters to entertain our audiences,” the studio said in a statement. “Midjourney is blatantly and purposefully infringing copyrighted works, and we filed this suit to protect our content, our partners and our investments.”

Next Steps

Midjourney has yet to issue a formal response to the allegations. The case adds to a growing wave of litigation testing the boundaries of AI, copyright law, and creative ownership.