List of films to improve English accent (: part 1 ((listed by: http://www.italki.com/user/1149019))

Lord of the Rings and The Hobbit Films:
There are currently three Lord of the Rings films, and two Hobbit movies (the third will be out this year).
These contain a large variety of British accents (includin
They are based on Tolkien's novels, which are considered classics. A lot of the dialogue sounds old fashioned or is worded strangely, but if you can understand the films you should have no trouble with most accents from Britain as well as some pretty complex sentence structures.
Apparently the movies are watered down versions of the original books, but the movies are still widely considered to be among some of the greatest films ever made.

Jason Bourne Trilogy:
There are three main Bourne movies (The Bourne Identity, The Bourne Supremacy and The Bourne Ultimatum) as well as one spin-off (The Bourne Legacy). I'm a big fan of the original trilogy, but to be honest I didn't really enjoy the spin-off.
They're mainly in American English, but there are a few characters that speak English with British or non-native accents (Russian, German, French etc.). A lot lines aren't in English at all, but not too many.

James Bond Films:
I've haven't watched many James Bond films; but since they have a similar theme to the Jason Bourne movies, they're more famous and they're are a lot more of them, I feel like I should mention them too. Besides, Jason Bourne is clearly inspired from James Bond (they even have the same initials!).
James Bond speaks British English while Jason Bourne speaks American English. You can decide which one you prefer.

Harry Potter Films:
There are eight Harry Potter films. They're all in British English, but they're also aimed towards a mixture of young children, teenagers and young adults so the language should be pretty simple.