Though the best Mark Ruffalo movies go far beyond the superhero genre, there is an obvious specific interest in his appearances as Bruce Banner across many MCU projects. Though Edward Norton originated the role of Bruce Banner, AKA The Hulk, in The Incredible Hulk, the recasting and debut of Mark Ruffalo proved to be a hit, and he has continued to be a huge part of the MCU since Phase 1. This has resulted in a lot of Mark Ruffalo movies and shows within the MCU, some that are better than others.

https://screenrant.com/every-mark-ruffalo-mcu-movie-show-ranked/