Lindsay Lohan has been warned she won�t be hired again until she sorts out her personal problems by the man behind her two biggest films.

Mark Waters � who directed both Mean Girls and Freaky Friday � says Lohan is wasting her natural talents with her drugs problems and recent arrests, and insists she�ll have to change her ways to stay in Hollywood.

He says, �I'm certainly not going to be seeking her out until she gets her personal life in order. On a business level, most companies aren't going to want to take the chance making a movie with someone who is unreliable.

�Unlike other celebrities in the news going to jail, she's actually somebody who has got verifiable talent and actually good at what she does.

�I think eventually, because she is good, she will get around to working again. She's still so young. She's only 21."

However, The Notebook actress Joan Allen�s had some kinder words for Lohan though, who sympathises with the youngster�s �problems�.

�I feel very bad for her because I think she obviously has a lot of problems, and maybe is in a lot of pain. It's serious,� she says.

"I try and put myself in her position, and I would just feel so bad being scrutinised to the degree that she is.�