There’s a moment - well into the story, believe me - when you finally see how the movie is, really, based on the game Battleship. (Side note: I was surprised to find that game is actually trademarked and sold - in primary school we used to play it with pen and paper.) In a moment of glorious realisation we see how the previous hour and a half was really just a long, contrived way of moving people, ships and aliens into position so that we could have five minutes of Battleship vividly portrayed on the screen. I can’t wait to see how they handle noughts and crosses.

There’s just enough human interaction to prevent this big, unbelievably stupid film from being demeaning to watch - it remains the intellectual equal of Independence Day, but it’s much more fun. Alex (Kitsch) is a loveable young male screw-up type; the cure for his fecklessness is, of course, to join the navy, so that his captain (Neeson), who also happens to be the father of the woman he hopes to marry (Brooklyn Decker), can glare balefully at him until he gets a chance to prove himself. And that chance, of course, comes in the form of an alien invasion. (The aliens turn out to be almost perfectly humanoid; this makes no sense, but at least they didn’t look like a rhinoceros with slime-coated tentacles, which is what we usually get in alien invasion movies and which doesn’t make sense, either.)

Alex does prove himself, of course; and I promise you it’s in a more ludicrous fashion than we could have dared hope.

This movie is pretty much what you think it’s going to be about... a five year engagement. Taa daa, review done! But that doesn’t mean it’s not entertaining, quite the opposite, I’m here to tell you to make sure this one is definitely marked on your calendar.

Segel and Blunt play Tom and Violet, a loving San Francisco-based couple preparing to get married after a year together. But, as happens to the best of us, life gets in the way; including a change of location, new jobs and tests to their relationship from friends and family members. While the film follows a relatively predictable path, it’s not as obvious as some other rom-coms. And at just over two hours it certainly seems to take its time getting there... which isn’t necessarily a bad thing depending on how your butt feels after sitting that long in the same spot.

With Apatow as producer, this film has all the hallmarks of his best work, with its mix of slapstick, gross humour and sweetness. Plus it has just that little bit extra in the form of some slightly deeper moments, and the chemistry between Segel and Blunt, which is really convincing. At the risk of sounding like you’re surfing your way through Amazon.com ... if you enjoyed Bridesmaids, you should enjoy this movie.