I really enjoyed the film. Neil Simon's script is very tight with great dialogue and gags. Sellers is always fantastic.
And I love this bit of dialogue winking at the fact that De Sica is directing the film:
An agent played by Martin Balsam is talking to his client played by Victor Mature.
"Ever heard of an Italian director called Federico Fabrizi?"
"He wants to talk to you about a picture. A neo-realistic film."
Watched on Kino Lorber Blu-ray.