Ok, I've been looking for this movie for at least 4 years now. I only know of one scene.
There is a boyfriend who is in a house standing near a staircase, and his former girlfriend , now vampire comes at him, and he says "Wait, wait! Before you kill me, i just want one kiss." She replies with a quick "Ok" and bares her fangs once again and he says "No! from the real you!" So she turns her head and turns back and voilà! She looks normal. Just before the kiss, he turns and sprays a garlic breath spray in his mouth. She kisses him and smoke/or steam starts coming from her mouth.
That's it.
Please help!!