The 1954 ‘Scope version of the Canadian Mountie operetta, with Howard Keel and Ann Blyth replacing Nelson Eddy and Jeanette MacDonald, who starred in the 1936 original, and Fernando Lamas completing the triangle. Busby Berkeley handled the choreography, and the underrated Mervyn LeRoy directed; what they yield may be hokum, but it’s hokum with a certain zip and polish, apart from the stagy sets. With Bert Lahr, Marjorie Main, and Ray Collins.