Limitlessis an action thriller film directed by Neil Burger and starring Bradley Cooper, Abbie Cornish, and Robert De Niro. It is based on the 2001 novel The Dark Fields by Alan Glynn with the screenplay by Leslie Dixon. Eddie Morra (Cooper) is an unemployed writer whose girlfriend Lindy (Cornish) breaks up with him. Eddie believes he has no future, but when a friend introduces him to the experimental drug NZT, Eddie becomes highly focused and highly confident.