if you read it on wikipedia the movies are listed on the same page under his information
As the Nightmare on Elm Street series progressed, Craven's original vision of Krueger as a true personification of evil was altered several times. Due to the enormous popularity of the films, the succeeding writers/directors chose to develop Freddy into a sardonic, wisecracking and flamboyant demon. Initially, Craven did not intend any sequels and even wanted the original to be a standalone film. When the original became a hit, New Line insisted on following it up, in spite of both Craven and original Nightmare heroine Langenkamp declining involvement. The second entry, A Nightmare on Elm Street 2: Freddy's Revenge was released to box office success — topping the profits of the original.
A Nightmare on Elm Street 3: Dream Warriors continued the series' financial success. Craven wanted Dream Warriors to be the end of the series, but the studio refused. Craven and New Line's relationship ended for a number of years as a result of their conflicting visions for the Nightmare enterprise.
i remember in one movie they told about his mother's being raped by a phsyco and she was a nun