Alan Rickman and Sir Tom Courtenay have joined the cast of CBS Films’ “Gambit,” a remake of the 1966 British caper comedy.

Rickman will play the wealthy Lord Shahbandar, while Courtenay will play a character known as The Major.

Colin Firth stars as a London art curator who enlists a Texas rodeo queen (Cameron Diaz) in a scheme to con the richest man in England.

Michael Hoffman (“The Last Station”) is directing from a script by Joel and Ethan Coen.

Mike Lobell is producing along with Crime Scene Pictures partners Adam Ripp and Rob Paris, who are also financing. Rizal Risjad will exec produce.

Production is scheduled to begin in May in London and FilmNation Entertainment is handling pic’s international sales.

Rickman recently voiced the Blue Caterpillar in Tim Burton’s billion-dollar grosser “Alice in Wonderland.” Thesp is set to reprise his role as Severus Snape in “Harry Potter and the Deathly Hallows: Part 2,” which Warner Bros. releases on July 15.

Courtenay was last seen on the big screen in “The Golden Compass.”

Rickman is repped by WME and Independent Talent Group. while Courtenay is repped by Jonathan Altaras Associates and Artist International Management.