What are movies that can help me move on and let go after my bf left me for his ex-gf?

It's been about 4 months since my boyfriend left me to go back to his ex-girlfriend. I tried my best to move on- working more, exercising, hanging out with friends etc. I thought I was getting better until I saw pictures of them together and seeing/hearing that he's really happy with her. Now I feel like I'm back to square one. I had this hope that maybe he still thought of me or missed me, but after hearing and seeing that he's does not; I've been feeling so sad, sick, angry, and hurt all over again. What can I do? What are some movies that I can watch that can help me move on? none of the sappy/love/break up movies, but movies that can give me hope.