Titanic 2000 (1999)

A Vampire's Lust is Unsinkable.

The luxury liner Titanic 2000 has set sail on its maiden voyage, and one of the passengers is the vampire Vladamina. Vladamina is searching for a woman she can turn into a vampire queen, and frustrated rock groupie Shari looks to be a perfect target. As various people get seduced and/or killed as the liner continues on its doomed voyage, Shari must chose between eternity as a living dead sex slave or a frigid grave at the bottom of the ocean.