Addasiad yw’r ffilm gan Gaby Chiappe o’r nofel ddoniol a thorcalonnus, Their Finest Hour and a Half gan Lissa Evans a gyhoeddwyd yn 2009. Cafodd ei disgrifio fel “portread ffraeth, twymgalon ac emosiynol o awdures ffilmiau ifanc (Gemma Arterton) wrth iddi ddelio â threialon byw, marw a charu.”
Adapted for the screen by Gaby Chiappe from the 2009 comic and heart-breaking novel Their Finest Hour and a Half by Lissa Evans, it is  described as ‘a witty, warm-hearted and moving portrayal of a young woman screenwriter ( Gemma Arterton) finding her way in matters of life, death and the heart.’