The three-way intersection that is supposedly the international border area (where the IMF tricks Anastas Poltroni into leaving the country) is actually one end of the tunnel on Mt. Hollywood Drive just below Griffith Park Observatory in Los Angeles.
During Poltroni's escape attempt with Cinnamon as his hostage, the rear view mirror of his Lincoln Continental alternates between being present and absent depending on the camera's point of view - this vehicle has suffered this fate more than any other in film history; possibly due to the massive width of this mirror.
The Lincoln convertible used by the adversary in the chase finale was brand-new and actually belonged to Lucille Ball. Her production company Desilu was instrumental in the creation of "Mission: Impossible".
After Anastas Poltroni avoids the spilled milk churns in the final car chase, the road he is forced onto is the same stretch of sandy road which was used in the chase sequence at the end of the "Odds on Evil" episode.
Despite being billed as a special guest star (not a member of the regular cast) for the entire first season, this is the first of only two episodes that does not feature Martin Landau for the 1966-67 season.