Bellboy (Bronson Pinchot) has no personal name and is only known by and billed in the credits as this.
This movie was a critical and commercial failure at the box-office.
The name of the luxury Venetian hotel is the "Hotel Gabrielli". The hotel does exist, overlooking the Venice Lagoon, and the exterior shots are of the hotel in its actual location. The interior filmed scenes don't reflect the interior of the actual hotel however.
The name of the Italian mafia mobsters' cruise yacht was "Vendetta".