The Netflix movie review dataset contains evaluation data from 480,000 users on 17,000 movies, with more than 1 million reviews. The data was collected from October 1998 to November 2005. The ratings are based on a 5-point system, and user information has been anonymized.

The dataset comes from the Netflix Prize competition, which aims to improve the accuracy of predicting a person's favorite movies and was held from 2006 to 2011.