Warner Bros. invited us to speak with the entire cast of their new romantic drama P.S. I Love You, which arrives in theatres on December 21.

On hand to discuss their involvement in the film were actors Hilary Swank, Gerard Butler, Lisa Kudrow, Harry Connick Jr., Gina Gershon, Jeffrey Dean and director Richard Lagravenese.

The film is an adaptation of the best-selling Cecelia Ahern novel about a grieving young widow who discovers her late husband has left her a list of tasks revealed in 10 monthly messages that are intended to ease her out of grief and transition her to a new life.

Click the player below to see what the actors had to say about the making of this film which takes place in both the U.S. and Ireland: