10. Captain America: The First Avenger (2011)
Landing at number 10 on our list, Captain America: The First Avenger represents a pivotal moment in the MCU, introducing us to the ultimate symbol of heroism - Steve Rogers.
This film serves as the perfect character origin for Rogers, seamlessly combining the World War II environment with the birth of a superhero. Chris Evans embodies Captain America in such a way that combines earnestness and moral fortitude, instantly making him a fan favorite. The movie's aesthetic captures the 1940s era with a nostalgic yet vibrant flair, and the action sequences, especially those displaying Captain America's iconic shield, are both exciting and overall spectacular.
But, where The First Avenger falters slightly is in its straightforward narrative. Unlike later MCU movies that combine complex plots and character arcs, this movie follows a more linear and predictable path. While this simplicity doesn't take away from its charm, it does place it a step behind its more intricate and emotionally layered successors in the MCU lineup.