Lo gnomo e il poliziotto

This film is one of those that makes very clear an adage, which is pretty important in any line of work, and especially in film IMO -- "Know what you know, and know what you don't know." Stan Winston very clearly knew Makeup Special Effects, and he was a master in that field. He clearly did not know film directing ( nor shot coverage nor overseeing editing nor,... well, several other knowledge gaps in his tool chest pop out when one views this movie).

The puppetry and facial animatronics in this movie are very good, but it falls flat in almost every other department (although I think there MAY have been a decent script initially).

Hitchcock didn't sing in films, he knew better. The Coens don't act in films, they know better. Daniel Day-Lewis does not write screenplays, he brings the characters off of the page as a master actor. Stan Winston knew Makeup SFX at a master level, but did not know film directing.