Sienna Miller is to star opposite Cillian Murphy, Keira Knightley and Matthew Rhys in the new film about poet Dylan Thomas, 'The Best Time of Our Lives'.
The film tells the true story of the relationships between Thomas (Rhys), his wife, Caitlin MacNamara (Miller), childhood friend Vera Phillips (Knightley) and her husband, William Killick (Murphy).
Variety reports that Miller has replaced Lindsay Lohan in the role of Caitlin MacNamara after she was unable to reach a deal with the film's financiers.
The film will begin shooting in May in Wales. 'The Best Time of Our Lives' will be directed by 'Love is the Devil' director John Maybury, who worked with Knightley on 'The Jacket'.
The screenplay for 'The Best Time of Our Lives' was written by Knightley's mother, playwright Sharman Macdonald.
