Three producers suing Rebel Wilson for defamation won a procedural victory Tuesday after a Los Angeles judge agreed to seek help from an Australian court in obtaining testimony from witnesses they say will undermine the actress's allegations.Los Angeles Superior Court Judge Thomas D. Long granted the producers' request to issue a letter rogatory — a formal request asking a foreign court to compel testimony from Australian witnesses who cannot be subpoenaed by a California court.The producers — Amanda Ghost, Gregor Cameron and Vince Holden — argue the testimony is critical to rebutting Wilson's claims in the long-running legal battle over the 2024 musical film "The Deb."Rebel Wilson speaks to the media as she arrives at court on the first day of a nine-day defamation hearing in Sydney this past April (Reuters)In a court declaration, attorney Camille Vasquez said one key witness is Australian producer Greer Simpkin, who worked on "The Deb" and was present during events tied to Wilson's allegations.According to Vasquez, Simpkin is expected to testify that there was no embezzlement or misuse of film funds by the producers and that she never told Wilson money had been stolen.Vasquez also said Simpkin is expected to dispute Wilson's claims that she was falsely imprisoned, coerced into signing documents, or that there were financial or tax irregularities involving the film.Actor Charlotte MacInnes pictured during the defamation hearing between her and Wilson in Australia (Reuters)The producers also want testimony from second assistant director Neaome "Noni" Roy, whom Wilson has identified as a witness to alleged misconduct.According to Vasquez, Roy is expected to testify that none of the alleged improper conduct occurred and that there is no basis for Wilson's claim she was falsely imprisoned.Wilson has countersued the producers, accusing them of a "troubling pattern" of theft, bullying and sexual misconduct. She also alleges they inflated the film's budget and split the excess funds among themselves.The producers originally sued Wilson for defamation after she publicly accused them of misconduct. In November 2024, Judge Long denied Wilson's bid to dismiss that lawsuit, a ruling she is appealing.Wilson is also seeking to delay the scheduled Oct. 5 trial by at least four months. Judge Long is set to hear that request on Aug. 13.