The characters names "Avery Simpson" and "Parody Jones" are a salute to Tex Avery and Chuck Jones, two of the geniuses behind the Warner Brothers cartoon studio.
Many of the stunts and pratfalls were notably performed by Kirk Douglas himself. Seeing as he was 62 years old at the time of production, this was quite an impressive feat.
Arnold Schwarzenegger (Handsome Stranger) wore an outfit identical to that of Clayton Moore's The Lone Ranger, just without a mask.
The sign in front of a saloon is the painting from the side of Snowman's truck in 2 pícaros con suerte (1977), also directed by Hal Needham.
The scene that shows the burning "cathouse" features a caricature of Burt Reynolds painted on the side. This was, apparently, a nod from director Hal Needham to his pal Reynolds.