The return of Maxwell Smart, but this time sadly without Agent 99 (Barbara Feldon). Instead he's teamed up with Agent 34, played by Sylvia Kristel, better known for her part in the Emmanuelle movies.
It's not a great film, but it has its moments, including a bizarre bus chase of sorts around the backlot at Universal Studios. The buses are Universal Studios Glamour Trams, made by Mini-Bus Inc for the opening of the Universal Studios tour in 1964, and they have to be unhooked from their trailers before being driven around at speed. The bodies are not aesthetically pleasing! Thanks to Skywatcher68 at the Internet Movie Cars Database for the id and the link: