When Twingo and Maria are embracing in the nunnery, Maria's head is towards the door (and Hooky); in the next clip, Twingo's is.
Melville Cooper's role is credited as "Private David Moonlight", but his uniform bears Sergeant's stripes throughout the movie.
During the movie the British relocate Maria Buhler (Janet Leigh) to Darmstadt for safety from the Russians which they say is in the British Zone. Far from the truth. Darmstadt is in the province of Hesse, south of Franfurt and well within the American Zone of occupation. The British zone was in the far Northeast of Germany. Check maps of occupation zones of Germany after World War II.