Peter Sallis' character (the man seen shaving in the circular mirror after the guard lets Marshall Jones through customs) is named Schweitz in the credits. However, on two occasions, this character is referred to as Sallis, by both Marshall Jones who refers to him as "Captain Sallis" and by Peter Cushing who refers to "Sallis'" death.
The car chase is full of errors in continuity. The action switches back and forth from a single lane road to a double lane highway and at one point Keith overtakes a blue car ahead of him in the road to the right and the police car follows. A few shots later, Keith overtakes a brown car and the scene cuts to Supt. Bellaver saying, "All right, let's take him." We then cut to one of the two cars overtaking the blue car and not the brown one.
When Keith escapes from the police, after he has severed off his own hand, he jumps over a short fence/style and rolls on the grass on his landing. Using pause you can see his real hand come out of his cuff just as where his stump should be