Love, Rosie by Irish novelist Cecelia Ahern will be adapted into a film.

Lily Collins and Sam Claflin have been cast in the lead roles. According to The Hollywood Reporter, the story follows “a college-age girl who discovers she’s pregnant after one night with the most popular boy at school.”

Over in the United Kingdom, Ahern’s novel is known as Where Rainbows End. HarperCollins UK released it in 2004. For the United States market, the title was changed to Love, Rosie.

Both actors will be featured on the big screen later this year in two different film adaptations. Collins plays Clary Fray in The Mortal Instruments: City of Bones and Claflin portrays Finnick Odair in Catching Fire. (via Hollywood Crush)