Los Angeles: Oscar-nominated filmmaker Amy Berg has confirmed that she has been working on a documentary about alleged sex abuse rings in Hollywood but says the film is bigger than just one case.

The Hollywood was rocked by allegations against 'X-Men' director Bryan Singer by a former teen actor last week. Michael Egan filed a lawsuit against the filmmaker and three others recently for allegadely molesting him in 1990s when he was a teen.

Egan's case will also feature on Berg's documentary, reported the Wrap. Berg, who recently made and acclaimed documentary 'West of Memphis' on the West Memphis Three, said the film includes the latest accusations against Singer.

"It is a huge problem, it's pervasive in Hollywood and the time to explore it is now. It's much bigger than anything about the one case," Berg told the website. She is currently promoting her feature film 'Every Secret Thing', starring Diane Lane, Elizabeth Banks and Dakota Fanning. It debuted at the Tribeca Film Festival on Sunday.