Loved this. Superb cast and acting and Cooper's tributes to past movies and real aspects of his and the cast's lives add to the authenticity. The second part seemed a bit cut short and underdeveloped. I would have liked to see more of his rehab stint, his past, hers, and her involvement but that's just me. Music? Was awesome. Gaga could have overpowered Cooper but that didn't happen. The characters were equal in power but not equal in their ability to tap into it. Would have been good to expand more on why.