Hollywood star Rebel Wilson says claims she bullied women on her film are "absolute nonsense" as she gave evidence for the first time in a high-profile defamation case against her in Sydney.

The Bridesmaids actress is being sued by a young Australian actress Charlotte MacInnes - who stars in Wilson's directorial debut, The Deb - over a series of Instagram posts in 2024 and 2025.

MacInnes says Wilson ruined her reputation by calling her a liar for complaining about sexual harassment by producer Amanda Ghost but later recanting it to further her career. MacInnes says she never made such a complaint.

On Tuesday, prosecutors asked if Wilson saw herself as a "champion of women" to which she said yes.

Her response was delivered to a packed courtroom filled with a mix of journalists, supporters and several witnesses - Ghost among them.