Watching movies, TV, and listening to music are good ways of improving your accent (be it British or American), but it would be best to get a native speaker to help you out with that. As you watch or listen, simply try to imitate the way they say the words and, with the help of a native, perfect your accent. I suggest daily practice and whenever you speak the language try to speak it with the accent. In my opinion, it is best to speak a language without having much of an accent since you are bet