A simple compliment goes a really long way - for a guy to just come over and say 'You have great hair' or 'I really like your dress ' and then just smile and walk away. That's a great move because he's sort of putting himself out there by doing that but it won't lead to any embarrassment if the girl isn't interested.
It's difficult to do a genre film well and it doesn't matter if you're talking vampire movies or 'Dawn of the Dead' or 'The Thing' or 'Escape From New York.' Those kind of movies they understand what the old-school B-movie is supposed to be they get the throwback of it.