''Less Than Zero'' is a 1987 film based on the [[Literature/LessThanZero book of the same name]] by BretEastonEllis, starring Andrew [=McCarthy=] as Clay, Jami Gertz as Blair, Creator/RobertDowneyJr as Julian and James Spader as Rip, Julian's drug dealer.
The film was noted for taking [[InNameOnly extensive liberties]] with the plot of the novel. In a curiously PostModern touch, the film adaptation actually exists within the universe of the ''Literature/LessThanZero'' book: the opening of the book's sequel, ''Imperial Bedrooms'', discusses the adaptation at length.
* AdaptationDyeJob: In the book, all the lead characters are blond(e)s. Not so here.
* DrugsAreBad: Only in the movie, presumably due to ExecutiveMeddling.
* InterruptedIntimacy: Towards the end of the film, Clay walks in on a naked and drugged out Julian about to give another man a blowjob.
* NoBisexuals: Clay's bisexuality is never mentioned in the movie.