In a significant escalation of the ongoing copyright dispute, the AI image generator Midjourney has asked a federal court to compel Disney, Universal, and Warner Bros. Discovery to hand over detailed records of their own internal use of generative AI technology. The demand represents an aggressive tactical shift that could reshape how the courts evaluate evidence in AI-related copyright litigation.
How the Lawsuit Reached This Point
Disney and Universal originally filed suit against Midjourney in June 2025, alleging its models could produce unauthorized renditions of iconic copyrighted characters such as Bart Simpson and Darth Vader. Warner Bros. Discovery followed in September 2025, adding its own stable of characters including Batman and Superman. The studios sought an injunction and statutory damages of up to $150,000 per infringing work. Midjourney has consistently argued that its use of publicly available images for training constitutes fair use.
What Midjourney Is Now Demanding
The case has moved into the discovery phase, the stage where both parties exchange evidence. Midjourney is now seeking far broader disclosure than initially granted by a court order in June 2026, which limited the studios’ obligations to AI use in consumer products only. The company is asking the court to remove that restriction entirely and require the studios to produce internal documents covering AI business strategies, training datasets, model weights, board-level presentations, and every prompt that studio employees have entered into Midjourney’s platform — not just the specific prompts linked to the allegedly infringing images at the heart of the case.
The Legal Theory Behind the Request
Midjourney’s motion relies on the legal doctrine of “unclean hands”: if the studios themselves use generative AI internally for storyboarding or early-stage concept work without properly licensing every image, that could indicate the industry treats such AI training as standard, unlicensed practice. In its court filings, Midjourney contends that this evidence could show the studios are engaging in the very conduct they are suing over. The studios’ lead attorney, David Singer, has dismissed the request as a “fishing expedition,” maintaining that the case is narrowly about stopping unauthorized copying and distribution of copyrighted characters, not about halting AI development or shutting down Midjourney.
Why This Discovery Fight Matters Beyond This Case
Legal observers are closely watching the outcome, as the court’s ruling on what evidence is admissible could set a precedent for numerous other AI copyright cases moving through the judiciary. If Midjourney succeeds in obtaining the studios’ internal AI records, it could fundamentally alter how courts weigh fair use arguments and industry-custom defenses in future disputes between AI companies and content owners. For now, the case stands as a pointed illustration of a central tension in the generative AI industry: media companies suing over unauthorized AI training while facing questions about their own internal AI practices.
This article is based on reporting originally published by Analytics Insight on July 7, 2026.