I missed Debbie Isitt's 2009 Nativity!, a partly improvised seasonal comedy about kids from various schools in the Midlands competing to win a prize for the best Nativity play. It must have been better than this inept sequel, in which some of the same performers (including Marc Wootton as a dimwitted, childlike classroom assistant) bring choirs from their schools to a Welsh castle to take part in a TV competition for the best Christmas song. The two principal teachers are now played by David Tennant in the dual role of twins, one an ambitious prig, the other a likable supply teacher. He gets "nul point" in both roles. The only laughs come from the film's title and Jessica Hynes as a ridiculously pretentious TV hostess.