At the start of the movie, an ice cream cone is rubbed into young Dudley's hair. In the next shot, his hair is clean.
When the Mounties ride to the rescue, the bugle call on the sound track is a U.S. Calvary call.
In Canada, members of the First Nations are found on reserves, not reservations, the American term.
Reflected in the evil villains' shiny black helmets, about 25 minutes into the movie.