Keira Knightley and Lindsay Lohan have reportedly fallen out over the American actress's decision to withdraw from THE BEST TIME OF OUR LIVES film last week.

Stunning Keira was said to be "furious" that Lindsay, who has recently finished her latest spell in rehab, decided to quit the film just three days before filming was due to start.

Lindsay, 20, who has repeatedly been slammed by British tabloids for her lazy behaviour, pulled out due to "changes that were not to her liking", an insider told Life & Style magazine.

But Pirates Of The Caribbean star Keira was unhappy that Lindsay had given the film the heave-ho, as she was involved in getting the MEAN GIRLS star to appear, while her mother also wrote the screenplay.

The story focuses on Welsh bard DYLAN THOMAS, with Lindsay supposed to have been playing Thomas's wife Caitlin MacNamara.

Matthew Rhys was due to play the part of the poet with Keira as Vera Killick, wife of William  the man who tried to kill Thomas after fearing he had an affair with his wife.

And the film was set to be a box-office smash after reports claimed Keira, Lindsay and Matthew's characters would be involved in a passionate threesome.

However, Sienna Miller is now likely to step into the role, according to Variety.

23/04/2007 14:30:01