What's the name of this really old movie...?

Question

It has this guy who was really famous in his day (i can't remember his name) and the plot is that while he's on vacation his butler rents his huge home in I think Italy out as a hotel. Then he comes home early one time and has to deal with all the people in it, more specifically a group of young boys and girls. I think it was probably released in the 50's or early early 60's.

Answer 1

Its called Come, September

Answer 2

That's Rock Hudson in Vacation in Paris. ( or something close) I think this is the movie that brought Bobby Darren, and Sandra Lee together. I think it was made in the 50s or 60s.