Rebel Wilson defamation trial centers on Instagram posts, The Deb dispute

Rebel Wilson’s Instagram defense of The Deb has landed her in the Federal Court of Australia, where the central question is whether a public rebuttal crossed into a potentially defamatory accusation. Charlotte MacInnes, the film’s lead actress, says Wilson falsely suggested online that MacInnes had privately told her she was sexually harassed by producer Amanda Ghost, then withdrew that account to advance her acting prospects.

Wilson gave evidence in Sydney on April 28, 2026, and denied bullying or harassing colleagues, calling the allegations “absolute nonsense.” The trial, expected to run nine days and streamed on YouTube, has become a test of how far celebrity self-protection can go on social media before it turns into a legal exposure.

At the heart of the dispute is a September 5, 2023 incident in Ghost’s Bondi apartment. Court evidence said MacInnes and Ghost ended up in a bath after Ghost had a medical reaction to cold water. Wilson’s side says MacInnes later complained the episode made her uncomfortable, while MacInnes denies making such a complaint. The competing accounts matter because they sit beneath Wilson’s later Instagram comments, which MacInnes says misrepresented what happened and why.

The case has widened beyond those posts. The court heard Wilson asked a crisis communications firm to publish a website attacking Ghost, including language calling her an “Indian Ghislaine Maxwell.” Wilson’s team has argued that MacInnes is being used as leverage in a broader feud between Wilson and The Deb producers, turning a film set dispute into a much larger campaign over reputation, loyalty and blame.

The stakes are amplified by the path The Deb has already taken. The musical comedy premiered at the Toronto International Film Festival in September 2024 after delays and legal battles, then opened in Australia in April 2026. Wilson directed, co-produced and starred in the film, and in court described herself as a “champion of women.”

For courts, the case sharpens a familiar line: a celebrity may respond publicly to criticism and protect a reputation, but once a post implies someone fabricated a harassment complaint for career advantage, the argument moves from self-defense to a potentially actionable accusation. That distinction now sits at the center of Wilson’s trial.