‘Interview With a Vampire’ is actually called ‘Interview with THE Vampire.’
What we remember: The movie is called Interview With a Vampire
What actually happens: There’s a “the” in the title.
If you do a Google search using “Interview With,” the first few searches will be for the film/novel. Or, you might get a few that refer to “a.” Both will take you here, though. To be fair, when you say the title, both ways sound similar enough.