There have been many sequels, reboots, and remakes but not many are successful at it. YouTube currently has the first five ROCKY movies playing for free and so I highly recommend anyone unfamiliar with the series to check it out. It's a special series unlike 007 or STAR WARS in that you get to see the same main actor and protagonist age and change along with his settings. Maybe INDIANA JONES is comparable but those films are few and far between.
I myself wasn't too big on the ROCKY franchise except for seeing a lot of III, IV, and V on cable television when channels numbered about 20. I never got to see any of the classics in the theater, and I was too far removed by the time ROCKY BALBOA was playing. CREED got me curious and I was glad to have purchased the ticket. With CREED II right around the corner, I'm reminded that I was around 6 y.o. when ROCKY IV was playing in theaters. Growing up in Nigeria, I was briefed on international flicks by cassette rental stores and kids whose families had satellite dishes. Over 30 years later, the son of Apollo is taking on the son of Drago. Like some mad adolescent fantasy years after IV was released, or a damn monster movie.