Blazing Saddles Trailer (1974)

The story is set in the American Old West of 1874 (though it is filled with anachronistic references). Construction on a new railroad runs into quicksand; the route has to be changed, which will require it to go through Rock Ridge, a frontier town where everyone has the last name of "Johnson" (including a "Howard Johnson", a "Van Johnson" and an "Olson Johnson".)