Both Cannonball Run movies are films to totally relax and let your funny bone rule you. No plots that make any kind of coherent sense, just a whole lot of people getting a great chance to overact with gusto and abandon. And since Cannonball Run II just about tripled the number of name players who did walk ons, it could be considered triple the fun.
Folks like Burt Reynolds and Dom DeLuise who are the nominal stars, Jackie Chan, Jack Elam, Dean Martin and Sammy Davis, Jr., and Jamie Farr make return appearances and a whole lot more get in on the fun.
Farr who is carrying the prize money as the fabulously wealthy hedonistic idiot son of an Arab sheik played here by Ricardo Montalban gets to be the target of some gangster heist when the wise guys find out what he's carrying. At that point the contentious rivalries cease among the Cannonballers as they band together against a common foe and to retrieve their prize money.
Along for the ride this time with Reynolds and DeLuise are a pair of ersatz nuns played by Shirley MacLaine and Marilu Henner. Martin and Davis now pretend to be cops instead of priests from the last film. They're the chief rivals of Reynolds and DeLuise. Telly Savalas does a great takeoff of his Kojak tough guy image on the other side of the law, Tim Conway and Don Knotts reunite as a pair of brain dead deputies. And Reynolds and DeLuise who pretend to be a general and his aide draft none other than Gomer Pyle on their 'top secret mission'.
Frank Sinatra even makes an appearance and it turns out that Cannonball Run II was the farewell big screen role for both he and Dino. As Dino says, he's royalty in America, surely in show business that's what he was.
Cannonball Run II which was starting to approach It's A Mad Mad Mad Mad World in terms of casting funny people in it and Don Knotts and Sid Caesar are in both is just a film to turn off the gray cells and put the funny bone in hyper drive.