Darvill stars as Andy while Kirby is Jen in the novel.
However, Jen has stopped loving Andy and he cant work out why.
Andy still has a lot to learn, not least his ex-girlfriends side of the story.
Vanessa Kirby and Arthur DarvillMatt Holyoak and Michael Shelford.
Watch on Deadline
Darvill is best known for his role as Rory Williams inDoctor Who.
Other television roles include Rip Hunter in Legends of Tomorrow and Rev.
Most recently, Arthur voiced the character Adam in the video gameThe Magnificent Trufflepigs.
Good Materialis Aldertons second novel and fourth book.
