Nicholas Barber: “Yes, it has James Crabe’s superb Steadicam shots of Rocky Balboa mooching around the industrial sites and working-class neighbourhoods of pre-gentrification Philadelphia. And, yes, it has Stallone’s heart-swelling sprint up the steps of the Philadelphia Museum of Art to the accompaniment of Bill Conti’s irresistible funk-fanfare. But for every terrific moment you remember, there is another terrible one you may have forgotten.”