Am I hallucinating or do IMDB refer to the film as 'Caligola'? It is apparently "also known as Caligula". We all make mistakes, but somebody should tell them. Just one point of clarification, in case people are looking it up; the Italian version of the film is 'Io Caligula' (translates as 'I am Caligula'), not 'Yo Caligula' (translates as 'Hello Caligula'). It would be an easy mistake to make.

The question isn't what the title is in other languages, but how it appears in the original print on the title card. For far more information than you need on how IMDb chooses the title, go to: https://www.imdb.com/help/show_leaf?titleformat

I think I'd like to see 'Yo Caligula', it sounds like a much better film. Unless Eddie Murphy's in it.