The Edge of Love is a 2008 John Maybury drama film starring Keira Knightley, Sienna Miller, Cillian Murphy and Matthew Rhys from a script by Sharman Macdonald, Knightley's mother. Originally titled The Best Time of Our Lives, the fictional story concerns the famous Welsh poet Dylan Thomas (played by Rhys), his wife Caitlin Macnamara (played by Miller) and their married friends, the Killicks (played by Knightley and Murphy). It was an official selection at the Edinburgh International Film Festival.