The premise of Knocked Up is simple. Seth Rogen and Kathryn Heigl share, for differing reasons, a one-night stand, and several weeks later, the latter discovers she's pregnant. Given that Rogen's character has been jobless for years, and that Heigl is trying to build a TV career, the two don't prove to be a logical match, yet as the pregnancy progresses, they try valiantly to get to know one another.

The narrative itself is quite straightforward, but it's the execution and characters that lift it significantly. Apatow knows how to direct comedy, and with a script peppered with plenty of guffaw-out-loud moments and situations, he wrings very hearty laughs from the material. Plus, while its Rogen and Heigl who power the film, the supporting cast is simply superb, particularly the collection of people that Rogen's character surrounds himself with.

It's perhaps guilty of running ten minutes too long, and there's little to surprise in the story itself, yet Knocked Up is nonetheless a terrific, earthy and grounded comedy, with so much to enjoy. It's hard to single out individual moments, and instead it simply seems more appropriate to declare Knocked Up as one of the best, and most rewatchable, comedies of the last few years. Don't miss it.--Simon Brew