The Butterfly Effect (2004)
Kid grows up with blackouts. Keeps a journal & later discovers a way to revisit his childhood & thus change future events. I actually hated this film when I first watched it, but then whilst re-reading this blog-post the world went a bit fuzzy & I was zapped back to September 2004. I then spent the next 6 years watching Lost. I now love this film 🙂 The constant nose-bleeds are a tad annoying though!!!