Actress Lindsay Lohan has pulled out of the chance to team up onscreen with Keira Knightley in a new Dylan Thomas biopic due to contract issues. The two stars were expected to appear together in The Best Time of Our Lives, but Lohan has now passed on the project after failing to work out an agreeable contract with producers. According to American publication Life + Style, Lohan was supposed to start work on the film this weekend (21Apr07). An insider tells the magazine, "She didn't back out and they (producers) didn't pull the deal, but there were changes that weren't to her liking, and that was that." Lohan and Knightley were rumoured to be part of a steamy threesome in the film. Lohan was slated to play poet Thomas' wife Caitlin MACNamara, while Knightley will star as the poet's childhood friend.