Monster (2003)

Kernel Score: 83% · 2,493 ratings · Rated R

Genres: Crime, Drama

Released: 2003-12-24

Runtime: 109 minutes

Is Monster worth watching?

Worth watching. Charlize Theron plays the real-life killer Aileen Wuornos in a bleak, harrowing true-crime drama. Her transformation is the main reason to watch, and the film is hard going.

Watch it if you

  • admire great transformative acting
  • like true-crime drama
  • can handle dark subject matter

Skip it if you

  • can't watch sexual violence
  • want a feel-good evening

Best for: Serious solo watch

Fresh Kernels verdict, AI-assisted from our scores, audience reviews and the official rating.

Where to watch Monster

  • Rent: Prime Video, Apple TV, Google Play, YouTube
  • Buy: Prime Video, Apple TV, Google Play, YouTube

US availability, updated 2026-10-23.

Overview

In 1989, prostitute Aileen Wuornos befriends and enters a relationship with a young woman named Selby. Determined to straighten out her life, Aileen's limited education lands her back on the corner. She's raped by a trick, who she kills. A string of murder and robbery follows that ultimately leads Aileen to becoming America's first female serial killer.

Monster parents' guide: ages 15+

Parents need to know that Monster is an R-rated true-crime drama about a prostitute turned serial killer, containing rape, murder, and sexual abuse.

  • Violence & scariness: Intense — Depicts murder, serial killing, and violent confrontations based on a true story.
  • Sex, romance & nudity: Strong — Includes prostitution, rape, and sexual abuse as central plot elements.

Fresh Kernels AI-assessed from the official R rating, publicly documented content. A guide for families, not an official rating.

Movies like Monster

If you liked Monster, these are the movies we'd watch next.

Director

Patty Jenkins

Cast

Monster FAQ

Is Monster worth watching?

Worth watching. Charlize Theron plays the real-life killer Aileen Wuornos in a bleak, harrowing true-crime drama. Her transformation is the main reason to watch, and the film is hard going.

Where can I watch Monster?

In the US you can rent it from Prime Video, Apple TV, Google Play and YouTube.

Is Monster OK for kids?

Monster is rated R. Fresh Kernels suggests ages 15+. Parents need to know that Monster is an R-rated true-crime drama about a prostitute turned serial killer, containing rape, murder, and sexual abuse.

What movies are like Monster?

If you liked Monster, try Extremely Wicked, Shockingly Evil and Vile, Holy Spider, 10 Rillington Place and Cape Fear.