Charlotte MacInnes is suing the Pitch Perfect actor over social media posts claiming MacInnes complained about feeling uncomfortable after bathing with Wilson's co-producer on musical film The Deb, Amanda Ghost.
MacInnes also alleges the posts - which could be seen by Wilson's 11 million followers for 24 hours - suggested she had withdrawn the complaint in exchange for plum acting and music opportunities.
The young actor who plays a lead role in The Deb denies making the complaint to the Bridesmaids actor and says her reputation has been seriously damaged before she could enjoy the benefits of starring in her first feature film.
But Wilson's barrister Dauid Sibtain SC argued MacInnes hadn't suffered any harm to her career at all since the first social media post in September 2024.
MacInnes signed a record deal with Atlantic Records in late 2025, her manager Shoshanna Stone told the Federal Court on Wednesday.
The deal provided for two EPs and was worth around $US310,000 (around $A430,000), she said.
Ms Stone's high-profile clients include Britney Spears, Shakira, Boy George and Alicia Keys.
She told the court she signed MacInnes to her roster after being informed of the young actor's talent by her friend Ms Ghost.
The up-and-coming performer's second single is due to be released on Thursday.
Her manager rejected suggestions it had been timed to coincide with the court battle.
MacInnes was hailed as a talented, enthusiastic and bubbly actor who has been irrevocably "hardened" by the social media posts by Hannah Reilly, the co-writer of The Deb.
In an affidavit tendered to the Federal Court, Ms Reilly wrote MacInnes confided they had taken away some of her innocence and trust in the world.
MacInnes said she was experiencing vivid nightmares and panic attacks, and stopped eating for days at a time.
"She has expressed to me it has been an all-consuming nightmarish force in her life," Ms Reilly wrote.
She said she observed MacInnes become more armoured as a result of Wilson's social media posts, which she reported left her with a constant sense of vigilance and anxiety.
Before September 2024, she had a reputation as a "bright star in the making", Ms Reilly wrote in her sworn statement.
She thought Wilson's subsequent social media posts suggested MacInnes was a liar who traded sexual favours to secure a role and a record deal.
Wilson denies the posts are defamatory and maintains MacInnes made the complaint before retracting it to ensure her future as a performer by appeasing Ms Ghost.
The Deb was released in Australia earlier in April after legal issues prevented widespread release following its 2024 film festival premiere.
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