Hi, the main blockbuster films of the year are probably going to be:
Pirates of the Carribbean 3 (which im not sure if you have seen the other 2, but i would highly reccommend you see them because they are brilliant & johnny depp's performance is excellent, plus its for all ages!)
Spiderman 3 (out in may): again im not sure if you will have seen the first 2, but i would reccommend at least giving 1 a go as it is a brilliant movie but not for everyones taste.
Shrek The Third (out in may): i know you say your not interested in kiddie's films but i dont know one single person who hates shrek! how can you not love a talking donkey!!
Harry Potter & the order of the phoenix (out in july): this is again a film that can be enjoyed by all ages, but not everyone likes it, but worth watching it at least once i reckon, or try seeing the first one and see what you think.
The Simpsons Movie (out in july): if you like the simpsons then this would be a must see, but again not for everyones taste!
I hope this helps a little! These are gonna be the big blockbusters of next year, theres also a few sequels and things that are coming out.
Also i highly reccommend that you go see Happy Feet which is in cinema's at the moment, dancing & singing penguins who could ask for more?!
x