Bingo! That IS James Cagney. The comedian Red Buttons is also in this film directed by Billy Wilder. I’d never heard of it before yesterday. May have to check it out sometimes. Most people forget how good Cagney could be at comedy.
Cagney’s performance in “One, Two, Three” is one of the best comedic performances of all time. Arlene Francis was great in it,too, along with Horst Bucholtz.