The pair will star alongside Simon Pegg (Hot Fuzz) in the dramedy, which Solution Entertainment Group will be presenting to buyers at the 37th annaul Toronto International Film Festival this month.
Adapted by Peter Chelsom and Maria von Heland from François Lelord’s best-selling novel, Hector and the Search for Happiness centers on a psychiatrist (Pegg) who searches the globe to find the secret of happiness.
Pike will play his devoted girlfriend, while Plummer will take on the role of Professor Coreman, Happiness Studies teacher at UCLA.
Chelsom will direct, with production due to commence in January next year.
Pike will next be seen in Jack Reacher, opposite Tom Cruise and Robert Duvall, while Plummer is currently filming the Stephen Frears-directed Muhammad Ali’s Greatest Fight.