"Limitless" is a science fiction film directed by Neil Burger and written by Leslie McNeal. The movie follows the story of Eddie Morra (played by Bradley Cooper), a struggling writer who feels stuck in his life. One day, he meets a mysterious man named Vernon (played by Morgan Freeman), who introduces him to a pill called NZT-48. This pill unlocks the full potential of Eddie's brain, allowing him to access 100% of his cognitive abilities.