Like any Rocky movie, it follows the formula. The performances are strong, especially Stallone's. The fight scenes are well choreographed. The sense of humor is there, as are the callbacks. The missing piece is the emotional core. Maybe it's the script, the pacing, or simply the lack of a scene as powerful as the one from Rocky Balboa where father confronts his son with a heartfelt plea. The emotional driver here is slightly anemic, which is odd considering the setup. Regardless, it's a solid film that does the series proud. For those who feared a Rocky V debacle (like I did), fear not.
Robin Williams puts on an incredible performance. There are some intensely emotional scenes that make this film special. My one gripe is how quickly everything comes together after the big breakthrough therapy session. It's as if Damon and Affleck realized they were running out of time and needed to wrap it up and put a bow on it - asap.