English actress Keira Knightley is reportedly "furious" at Lindsay Lohan for pulling out of the upcoming Dylan Thomas biopic The Best Time Of Our Lives, because she personally persuaded the American star to sign up for the project. Lohan quit the movie - written by Knightley's mother Sharman MACdonald - last week (ends20Apr07), citing contractual issues. But British newspaper The Daily Mail claims the Pirates Of The Caribbean star is angry at Lohan's last minute decision, with filming due to start in early May (07). Sienna Miller has replaced the Mean Girls actress as the Welsh poet's wife Caitlin in the film, which focuses on the love triangle between Thomas (played by Matthew Rhys), his wife (Miller) and his mistress Vera Phillips (Knightley).