(at around 55 mins) In a European scene, youngsters are astonished that 'Natalia' (or Woody's comic book creation of Laser Lady' ) is before them. Several children have comic books in their hands. As the boy in the foreground turns his copy around, you can actually read the back cover (US) edition advertisements and further can realize the front cover is in US English! You will also note that all children have US versions.
After the scene where Woody and Natalia escape from Morovich by turning the Condormobile into a hovercraft, Morovich reports to Krokov that the Condormobile turned into a hydrofoil.
When Harry's supposedly uninhabited car drives itself off the pier, a driver can be seen hidden inside the driver's seat, as the driver's arm is visible, cleverly hidden with the upholstery.
Car chase: after the other 4 Porsches are destroyed, Morovich takes a shortcut downhill. You can see his front being damaged, but when Morovich is back to the road, everything is back in place.
The first scene with the Porsches on the town square is sped up, as is obvious from the jerky motions.
Wire work is clearly seen above the Condorman suit flying over the Monte Carlo pier.