The film harkened back to the older superhero films with likable characters, lighthearted humor, and a good heart. Gunn remembered that Superman movies should be full of hope and kindness, not dark and gritty stories better suit to Batman. Thunderbolts*One of the best MCU movies in years sadly failed to have the box office impact of its predecessors. This low-budget superhero film balanced B-movie gore with a cautionary tale about corporate America and the health system. Captain America: Brave New WorldWith just 46% on Rotten Tomatoes, the fourth Captain America film was a disappointing outing for both critics and superhero fans.