With more claret than a blood bank and more skin than a nudist colony, True Blood is HBO at its most gleefully provocative. Unencumbered by the cerebral depth of The Sopranos, the social conscience of The Wire, or the historical obligations of Deadwood, it’s a two-backed beast of a TV show. That’s not to say it’s not smart or satirical, but from its opening credits it announces its dishonourable intentions as a gravelly voiced stranger croons, “I wanna do bad things with you.”

If you’ve seen Tomas Alfredson’s remarkable Swedish adaptation of John Alfrede Lindqvist’s vampire novel Let the Right One In, then this US remake by Matt Reeves is far from required viewing. He shadows the original so closely, you’ll never be surprised or scared. But like a loving cover version of a favourite hit, there are pleasures in the riffs he plays.

Don’t you just hate it when your favourite cult show becomes everybody’s favourite cult show, and then to make matters worse even the damned Americans embrace it? But how could you not love a scarier, bloody version of the sitcom Spaced, or a funnier version of the horror movie Let the Right One In? Yes, the latter does sound particular unlikely, yet in 2008 Toby Whithouse managed to create a central trio of characters who are first and foremost endearing and achingly vulnerable, and only secondly a ghost, a werewolf and a vampire.

By the standards of contemporary horror movies, Let Me In has several things going for it. It isn't about somebody being tortured to death, its leading characters aren't played by the usual vapid twentysomething actors pretending to be high-school students, and, by and large, it eschews some of the more tedious horror fads of our time, such as herky-jerky editing, or big "Boo!" musical cues designed to make you jump.

How did vampires manage to stage a near-total hijack of the popular media? It used to be just Christopher Lee in a cloak with Hammer Films’ home-made cardboard bats hanging on wires over his head, but now we’re up to our throats in Buffy, Angel, The Twilight Saga, Blade, Van Helsing… and True Blood, HBO’s somewhat superior exercise in blood-squirting southern Gothic, now back for its second series on Channel 4.

It's the eternal human-vampire-werewolf triangle, and at times it feels as though it really will go on for ever and ever. The story so far: in the small North-West Pacific town of Forks, where the sun hardly ever shines, a teenage girl called Bella loves Edward, a 100-year-old vampire who is perfect in every way, except of course that he drinks (non-human) blood, and has a tendency to sparkle on those rare occasions when the sun does come out. But, as we all know, girls like sparkly things, so that's OK.

They're back! Bella Swan and Edward Cullen (otherwise known as Kristen Stewart and Robert Pattinson) are once again smooching on a screen near you. I turned up one hour early for a showing of the new Twilight movie, and the damn thing was already sold out. Which suggests the film will do every bit as well as, if not better than, its predecessor, which made $383 million worldwide.