I have to be honest I'm not a huge film person and my taste is a tad limited (I'm not into action/horror/epic films and usually stick to comedies) so my list won't be to everyone's taste!

1. Moulin Rouge Never have I been so obsessed with a film as I was with this when I was 13/14. I love musicals so this so my cup of tea and the range of emotions you feel watching it is fantastic. It's completely unmissable
2. Love Actually I love this film and could watch it over and over. It's such a feel good film, it has a spectacular cast
and it's Christmassy!
3.Zoolander One of the funniest films ever and another favourite of mine. There are so many hilarious moments it's untrue.
4. Harry Potter series The only epic series that I could get into and that interests/excites me. The films do the novels proud and although they have gradually become darker they're films perfect for families and people of all ages can appreciate them.
5. Mean Girls A rare example of a genuinely funny, clever modern high school/teen film. This is definitely an age thing but I am yet to meet a girl my age that hasn't seen this. It's one of those films you quote and other people get it immediately or that you can even relate to real life whether it's your friend forgetting stuff on a test because she learnt it in the lesson that the guy she liked was talking to her, or another friend dressing in hotpants, fishnets and cats ears for Halloween whilst you're looking more creepy than hot with a white face black eyes and fake blood....basically it's realistic as well as funny and smart!
6. Borat/Bruno I couldn't decide which to put in the top 10 but it's the same concept in each film. The characters are amusing and Sacha Baron Cohen pulls them off marvellously. They're also some of the funniest films I've seen, as well as shocking (due to both his antics and some of the things his victims come out with). It's fantastic at highlighting the idiocy, ignorance and bigotry of some people too.
7. Anchorman A simply hilarious film with hilarious characters. Also probably the most quotable film I've seen in my life.
8. Finding Nemo Pixar films never disappoint and I have a soft spot for this one. It's cute, funny, great to look at plus I won't often go back to the cinema to watch an animation I've already seen twice.
9. Hot Fuzz One of the best British films I've seen. Loved the comedy, loved the action, loved Simon Pegg and Nick Frost.
10. Sex and the City One of the ultimate girlie films. Admittedly I didn't get into the show until 2002 because of my age but it was still great to see its transition onto the big screen.
Casino Royale, the Pirates of the Carribean series, The Pursuit of Happyness and Monsters Inc are definitely worth a mention too.