Peggy Carter is a beloved character in the Marvel cinematic universe, appearing in multiple films over the years. Her most prominent appearance was in the 2015 film Ant-Man. In this film, she appears in a flashback scene where she helps the original Ant-Man, Hank Pym, to hide his shrinking technology from the sinister Hydra organization. This scene shows her as an intelligent and brave agent willing to do whatever it takes to protect the world from evil. She is also portrayed as a compassionate woman, understanding the importance of Pym's research and the sacrifices he must make to keep it safe. Peggy Carter's appearance in Ant-Man is an iconic moment for fans of the Marvel universe, and it showcases her as a strong and courageous woman who will fight for what's right.