From IMDB:

A genetically inferior man assumes the identity of a superior one in order to pursue his lifelong dream of space travel.

From Netflix:

In a dystopian future where genetics determines your fate, a man born into limited prospects plots to escape his second class citizen status.

From Netflix you can stream this 25 year old classic film which lasts 1 hour and 46 minutes.

Again from IMDB:

In the not-too-distant future, a less-than-perfect man wants to travel to the stars. Society has categorized Vincent Freeman as less than suitable given his genetic make-up and he has become one of the underclass of humans that are only useful for menial jobs. To move ahead, he assumes the identity of Jerome Morrow, a perfect genetic specimen who is a paraplegic as a result of a car accident. With professional advice, Vincent learns to deceive DNA and urine sample testing. Just when he is finally scheduled for a space mission, his program director is killed and the police begin an investigation, jeopardizing his secret

Jude Law plays the paraplegic Valid Jerome. Ethan Hawke plays the ambitious In-Valid Vincent. UmaThurman plays Irene who cannot be Valid because she has a heart condition.  Irene and Vincent become lovers.

Most of the plot centers around the extreme means that Vincent must take to become Jerome, all done with Jerome’s unselfish help. For one example, Vincent must change the length of his legs (ouch!) in order to match Jerome’s height. All these maneuvers are necessary because there are watchful cameras and security entrances just about everywhere.

At the time this film was made, do you suppose the filmmakers could imagine how close the film details come to the 2022 social controls in, say, China or North Korea?

Good flick!