Pretty Woman is a 1990 American romantic comedy film set in Los Angeles. Written by J. F. Lawton and directed by Garry Marshall, the film stars Richard Gere and Julia Roberts, and features Hector Elizondo, Ralph Bellamy (in his final performance), Laura San Giacomo and Jason Alexander in supporting roles. The story of Pretty Woman centers on the down-on-her-luck Hollywood prostitute Vivian Ward who is hired by a wealthy businessman, Edward Lewis, to be his escort for several business and social functions, and their developing relationship over the course of Vivian's week-long stay with him. 

Originally intended to be a dark cautionary tale about class and prostitution in Los Angeles, this motion picture was reconceived as romantic comedy with a large budget. It was widely successful at the box office, and it became one of the highest money-makers of 1990.

Today it is one of the most financially successful entries in the romantic comedy genre, with an estimated gross income of $463.4 million.^[1] It is considered by many critics to be the most successful movie in the genre 

(Wikipedia)