David Tennant is taking a double starring role as twin teachers at rival schools in “Nativity 2,” a sequel to Debbie Isitt’s 2009 U.K. hit comedy.

Pic, backed by U.K. distrib Entertainment One, started shooting Oct. 17 for six weeks in the English Midlands and North Wales. Like the first movie, the low-budget sequel is based around a school putting on a Christmas performance in competition with other schools.

Tennant, best known for “Doctor Who,” plays a temp teacher who must lead a group of under-achieving kids in the national contest, while his golden-boy brother (also Tennant) leads the challenge from a posh rival school.

Written and directed by Isitt, the pic is produced by Nick Jones of Mirrorball Films, and co-financed by Premiere Picture and Media Pro Six.