When Stanton is talking to Linnaker, his position in relation to Linnaker changes between shots.
Clermont's position outside Karen's hospital room changes between the shot when he looks in and the one when Stanton leaves.
There is no Mo(u)nt Vierge in Switzerland, but there is a peak called La Vierge (3244 m) near the Swiss-Italian border.
When Stanton gives Karen an X-ray, neither he nor the nurse stand behind any radiation protection.
However, in the 1940s, X-rays were not yet considered dangerous, and this technology was widely used. Shoe stores even used X-rays to measure customers' feet through the 1950s.
"Costumes by Edith Head" it said in the credits. Edith must have had a severe hangover when she dreamed up Stanwyk's outfits in this movie.