Ant-Man is a superhero film in the Marvel Cinematic Universe, where Paul Rudd portrays the titular character, Scott Lang. Scott Lang is a former thief who becomes the Ant-Man after being recruited by Dr. Hank Pym, played by Michael Douglas. The movie follows Scott as he learns to harness the power of a suit that allows him to shrink in size but increase in strength. Ant-Man combines action, humor, and a touch of heist elements, making it an entertaining addition to the superhero genre.