What are differences between American accent and British accent?
can you recommend for me some movies or video to improve British accent English?
Try Downtown Abbey. The pronunciation is very clear and the storylines are easy to follow. The costumes are lovely, too.
What is exactly your level of English?
I like to listen to BBC Worldservice radio. But that is pretty advanced.
I advice you to learn american accent because american is 300 millions
and many teach it in the world
BBC News and Keeping up with the Kardashians :)