I also agree the movie was not utterly fantastic.....the cinematography and music were the best part with Ledger's acting very close behind.....otherwise, the movie was just a classic tragic love story that's been done a million times before......no significant plot twists or revelations.....that it was two guys in a mainstream movie is a healthy step forward, but, otherwise, not cutting-edge moviemaking
however, as @rustyrex said, the ending, of course, was excruciatingly sad.....with Ledger's acting, the music, and Jack and Ennis's history combining to create quite a finish