Claims by Rebel Wilson that a young Australian actress was sexually harassed by a producer but then hid it to better her career are "malicious concoctions", a Sydney court has heard on the first day of a defamation case against the Hollywood star.

In 2024 and 2025, Wilson posted on Instagram that Charlotte MacInnes - who stars in Wilson's film The Deb - had felt "uncomfortable" after sharing a bath with one of its female producers.

The Pitch Perfect star claimed MacInnes had retracted a complaint - which MacInnes denies making - in exchange for a major theatre role and a record deal.

MacInnes says the allegations have tarnished her reputation for integrity and honesty, and is seeking damages.

Lawyers for MacInnes have said she made no complaint to Wilson about the bath incident but that Wilson later used it as "leverage" in a dispute with producers about the film's budget and contracts.