Rebel Wilson is going to have to prove in court that she wasn’t making up the appalling allegations she made against producers on her film “The Deb,” a judge ruled on Wednesday.

The “Pitch Perfect” star had claimed on social media that the movie’s co-producer Amanda Ghost had sexually assaulted its star, Charlotte MacIness, and that her fellow execs Gregor Cameron and Vince Holden had “embezzled funds from the film’s budget.”

Wilson tried to get their suit thrown out earlier this year, but a court sided with Ghost, Cameron and Holden and let it stand. Wilson appealed that decision, but the appeals court once again sided with her adversaries.

Wilson will now have to prove that her allegations against the trio weren’t malicious lies, we’re told.

The ruling is significant because “this was supposed to be Rebel’s big bet” for getting out of the suit, a source familiar with the case told Page Six.

Johnny Depp’s legal eagle, Camille Vasquez, is repping the group and she told page Six, “[Wilson] has had ample time and countless opportunities to retract her appalling allegations and issue an apology.”

Vasquez added, “Instead, she hoped California’s free-speech protections would shield her from accountability. That cynical legal gamble has spectacularly backfired, as the Court of Appeal concluded that the producers have a ‘probability of prevailing’ on their defamation claim against Wilson. This case is now heading to trial, and we look forward to seeing her in court.”

A rep for Wilson did not get back to us by deadline.