Other mistake: Steve Martin, a surgeon, never once wears a surgical mask while performing any operation.
The Man with Two Brains (1983)
1 other mistake - chronological order
Directed by: Carl Reiner
Starring: Steve Martin, Kathleen Turner, David Warner, Paul Benedict
Factual error: Part of the movie takes place in Vienna, Austria. Although the number plates of the cars are like those in Austria at that time, neither the road markings nor the street car which can be seen when both Steve Martin and Kathleen Turner are "climbing" outside their hotel look like those in Vienna.
Dr. Necessiter's butler: Can I get you anything more, doctor? I'm about to retire.
Dr. Michael Hfuhruhurr: Really? You seem so young.