Men in Black III poster
You may have heard of Men In Black. The first film came out in 1997. A sequel came out in 2002. I don’t actually remember much about the first film (except that Agent J is recruited, and there is a really creepy guy with an alien inside him) or anything about the second film, but it works well as a standalone film so I’ll review it as that.
Firstly, the basic plot (but without the ending): a very evil alien has escaped from prison and wants to kill Agent K in the past, before he shot his arm off. So that’s what he manages to do, and only Agent J knows that K didn’t die 40 years ago, and that he was still alive, before time went wrong. But it’s not that simple. If/when K survived, he set up some kind of shield to protect the Earth from the very evil alien’s species, but since he didn’t, the shield was not set up, so the Earth is being attacked. So J has to go back in time, and (try) and sort things out before the Earth gets destroyed…
That synopsis is probably kind of rubbish, but you hopefully get the idea. If not, go and see the film. 
Does it work? Yes, very much so. There are so over the top times, for example when the very evil alien escapes from prison, but the rest of the film has amazing effects, great acting and it’s generally brilliant. It’s even a little sad at the end, when ______________________________ happens (filling in the blank would kinda spoil the film, sorry).
My favourite character is Griffin, an alien with precognitive powers. He’s kind of weird at first, but then you just grow to like his predicting the future powers, and how he can tell if a future is going to happen just by someone forgetting to leave a tip.
Overall rating? 5 stars. 5/5. That’s what I gave it on Rotten Tomatoes, and I really think it is worth all of those stars.
I agree with your review – what an excellent film! I really look forward to the DVD release to see it again, and commend others to see it in the cinema in 3D as it is really made to be at its best in that format!