Lindsay Lohan's "inability to tell the truth" is putting her latest acting role in jeopardy.

Producers behind the troubled actress' next role, a television biopic of Elizabeth Taylor, are worried by conflicting reports of an alleged altercation with a female at the Chateau Marmont hotel earlier this month.

Lindsay claims she was not at the hotel on April 5, but the woman, Marisa Dugas, has filed a police report accusing her of battery. Two further reports have been given, claiming Lindsay - who was released from probation last month - was present at the party.

A source told a media website: producers "are extremely concerned about Lindsay's hard partying ways. Here are the facts, since she was formally taken off formal probation, she has been at the Chateau Marmont several times.

"She was definitely at the nightclub when the assault allegedly took place.

"However, Lindsay told the producers that she wasn't there, so even if she isn't charged with a crime, her inability to tell the truth is hurting her, period."

Lindsay's legal problems stem back to a driving under the influence (DUI) conviction in 2007, and her long history of legal issues make it hard for anyone to employ her as an actress, because of the insurance costs.

The source added: "The producers had to jump through hoops to get Lindsay insured for the project, so it's very concerning that she is putting herself in situations that just aren't good for her.

"You compound that with the lies, and Lindsay is truly her own worst enemy."

A lawyer for Marisa said she has given pictures of the injuries she claims were caused by Lindsay to the West Hollywood Sheriff's Department, and they hope CCTV footage proves Lindsay was at the party.

Lindsay's representatives say they are "going to wait for the Sheriff's Department to release their findings before we comment any further."

The biopic is set to start filming at the beginning of May in Canada.