IMDb is an online popular database of information concerning films, television series, podcasts, home videos, video games, and streaming content online which includes cast, production crew and personal biographies, plot summaries, trivia, ratings, and fan and critical reviews.
IMDB was founded by Col Needham and was first launched in October 1990. It has been owned and operated by IMDb.com, Inc., a subsidiary of Amazon since 1998.
Many argued that reviews are more reliable from Rotten Tomatoes, mainly because it is operated by film critics and those that went to film school. Whereas, iMDB allows anyone to vote and write reviews on movies and television shows.