Drew Barrymore aggravated organizers at the Toronto International Film Festival after failing to show up at a press event for her directorial debut Whip It.

The star skipped the scheduled press junket for the upcoming roller derby movie, which stars Oscar-nominated actress Ellen Page and hip-hop star Eve, at the Canadian festival over the weekend. Barrymore blamed a sore throat for the absence, but sources tell The New York Post the actress was feeling ill after partying too hard at the star-studded festival earlier in the week.

“They had a press junket for Whip It at the Park Hyatt, and Drew completely bailed. The reason she cancelled is supposedly because she lost her voice.”