The 2015 film marked a significant shift in the Marvel Cinematic Universe (MCU), moving away from planetary destruction toward a tighter, more intimate "heist" narrative. Directed by Peyton Reed, the movie follows Scott Lang (played by Paul Rudd), a well-meaning master thief and ex-convict seeking redemption and a way to reconnect with his young daughter, Cassie. Plot and Themes: The "Ant-Sized" Hero

The story begins with Dr. Hank Pym (Michael Douglas), a brilliant scientist who resigned from S.H.I.E.L.D. years prior to protect his revolutionary "Pym Particle" technology—a substance that allows physical matter to shrink while retaining or even increasing strength. In the present day, Pym recruits Lang to don the Ant-Man suit and pull off a high-stakes heist at Pym Technologies. Ant-Man (2015) - Plot - IMDb