Transformers
After their planet is ravaged by civil war, two warring factions of shape-shifting robots arrive on earth in search of a digital rubik's-cube gizmo with the power to turn ordinary electrical appliances into all consuming monster robots. The Decepticons are led by the evil Megatron, who was discovered frozen in the ice by troubled geeky teen Shia La Beouf's grandfather. Luckily he's just bought a new car that turns out to be one of the friendly Autobots who are here to save us - led by the articulated lorry-esque Optimus Prime.
As a kid you would probably shit bricks at how cool the robots are in this movie, but as an adult it's like watching a 120 minute trailer that shows all the best bits. An experience not too dissimilar to lying down on a motorway being run over constantly. The premise is thinner than Highlander II, with very little explanation for why the robots can assume some shapes they like, but don't bother at other times - when being a steam roller might be more useful than being a cool little dune-buggy.
Hollywood heavyweight/lifecoach Michael Bay adds his usual flair, taking his cue from the George Lucas school of film making - where you can't see the CGI because it's all CGI, and it works pretty seamlessly. There are some great sequences and effects - notably the helicopter-bot assassin that attacks the US Army a couple of times in an attempt to steal their bandwidth or something.
It's a fun ride, so don't take my cynical opinion on it all. I was always more of a Lego fan.