An American in Rome
Un americano a Roma (original)
Starring Alberto Sordi, Maria Pia Casilio, Ilse Peterson, Anita Durante, Giulio Calì, Galeazzo Benti, Carlo Delle Piane, Rocco D'Assunta, Ivy Nicholson, Charles Fawcett
Watch "An American in Rome" on Amazon Prime released in 1954. It's a comedy movie, and has a rating of 6.9 out of 10 from Imdb which is usually fine for this kind of movie.