So this turned up on t'Internet this morning. It's got Robert Pattinson, it's got Kristen Stewart, it's got marriage, it's got people saying "as long we both shall live" in dramatic voices, and - yes - it's got vampire sex. Mmm, baby, vampire sex that's so good you want to reach up and crush a window sill with your bare hands. Oh yeah.

This is the new Twilight: Breaking Dawn: Part 1 trailer. Hide your children. And your IKEA furniture. And get ready for the best line reading of the year, when Carlisle says (with a completely straight face): "The foetus isn't compatible with your body. It's too strong." Let the Oscar campaign start here.

Twilight: Breaking Dawn: Part 1, directed by Bill Condon, is released in the UK on Friday 18th November.