District 9

I don't know what to write about District 9 without filling it with spoilers or words like "AWESOME" "INSANE" and "THE BEST FILM THIS YEAR". I love it, it's brilliant, and proof you don't need a big budget to make a good film. The visual effects are photorealistic, stunning, and never used to wow the audience or go "look at me! over here!". They compliment the film and add a degree of believability to it all, with convincing interaction between the CG aliens and human actors. And all on a budget of $30m. Take your $200m, Transformers 2, and burn it. At the stake.
The level of detail is amazing, this is a fully-formed world, set only a few years in the future, and manages to deal with a multitude of issues, from racism to self-preservation to genetic experimentation.

What makes it even better is that the lead character had no scripted dialoge, everything is improv. How the hell they pulled it off I have no idea, but it makes it even more convincing as a docu-drama, as Sharlto Copley's Wikkus seems even more genuine and unsure of himself infront of a camera.

The only downsides I can think of is that whilst the change from Documentary to actual Drama at around the 40 minute point is very good, towards the end it starts pulling back in the Documentary parts, making a jarring and sudden change from the flow of events. Alongside this, there are a few plot holes that you don't notice at the time but come back to haunt you a few hours later, and the occasional pantomime-style baddies, but they can be forgiven slightly.

10/10 - Fucking awesome, insane, and the best film I have seen this year. Stop whatever you're doing, and go see it. NOW. Further testament - I've paid to see this film TWICE. How often do I pay to see a film ONCE, let alone a second viewing?