AceShowbiz - Director Matthew Wilder has renewed his vow to stand by Lindsay Lohan as she endures a further three months in drug rehab, insisting he has no plans to replace her as the lead in his Linda Lovelace biopic. The filmmaker hired the "Mean Girls" star to play the troubled porn legend in "Inferno" earlier this year, but production on the project was pushed back when Lohan was jailed for breaching her probation over the summer.

Shooting was scheduled to begin in November but filming on the movie has now been stalled after Lohan was ordered to spend the next three months continuing treatment at California's Betty Ford Clinic during a court hearing on Friday, October 22.

But Wilder has promised to support his leading star as she conquers her demons. He tells the New York Daily News, "We're not replacing her with another person. She's good and productive and thinking about life beyond (rehab). I think she feels a little cooped up there, but she's OK."

The news will be a major relief for Lohan - in court documents filed by her probation officer, she admits she "can not afford to continue to pay for the treatment program and she needs to work". The extra three months at the Betty Ford Clinic is expected to cost the actress an estimated $63,000.