Yesterday I watched the enhanced DVD version of "Gene Autry and the Mounties". BS story but enjoyable nevertheless. The "Mounties" were wearing 1950 uniforms while being RNWMP (1904-1920). In one of the shoot outs a Sgt was actually using the NWMP carbine. Another Sgt had no service stars. The story line took place in western Canada however most the bad guys were French Canadians, touques, sashes, broken English, etc.
You are probably wondering how Gene Autry got into this story. He was a U.S. Marshall from Montana, he and his deputy played by Pat Buttrum (sic) following the trail of bad guys into Canada. They, together with the "Mounties" rounded them up.
Bruce Carruthers, an ex RCMP member who played a background Mountie in the movie, was the technical adviser. He tried to keep the Mounties as authentic as Hollywood would allow him. The salute was correct, palm facing forward.
Just as an side note: Bruce Carruthers was technical adviser on several of Hollywood's Mountie movies during the late 40's and into the 50's. In Pierre Burton's book, "The Americanization of Canada" by Hollywood, it stated that Bruce had an uphill battle with the directors trying to keep the Mountie image correct.