Try starting off with some easier tv series:
-Downton Abbey
- Friends
- Modern Family
- How I met your mother
- The Crown
- Sherlock
and Films:
- Titanic
- Home Alone
- Shrek
- Jurassic Park
- Notting Hill
- The Hunger Games
- Men in Black
The key is to put subtitles in ENGLISH and not in your NATIVE LANGUAGE!