# Where to watch Mother Knows Best 3 (2021) in the UK

> Mother Knows Best 3 (2021) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 14 May 2026 by ScreenSearch.

**Type:** Film  
**Year:** 2021  
**Runtime:** 111 minutes  
**TMDB rating:** 8.0/10  
**Region:** United Kingdom (GB)  
**Last verified:** 14 May 2026 (2026-05-14T16:46:59.161Z)  

## Synopsis

New stepmom London River makes a shocking confession when she catches her son snapping a photo of her ass with his phone. Brooke Banner gets back at her cheating husband by sleeping with his offspring. Horny stepmother Crystal Taylor welcomes her visiting son with open legs. Trophy wife London Rose disciplines her bratty stepson and discovers he likes it…a lot.

## Streaming options in the United Kingdom

No current UK streaming, rental, or purchase listings were found for Mother Knows Best 3 in our daily-updated TMDB feed. The title may be on physical media only, awaiting UK release, or in a temporary licensing gap.

## Frequently asked questions

**Where can I watch Mother Knows Best 3 in the UK?**

Mother Knows Best 3 (2021) is not currently listed by any UK streaming, rental, or purchase service in our daily-updated TMDB feed. It may be on physical media, an aggregator, or pending a UK release. Check back later — availability changes frequently.

**Is Mother Knows Best 3 on Netflix, Disney+ or Amazon Prime Video in the UK?**

Mother Knows Best 3 is not currently included with any major UK subscription service. It may still be available to rent or buy.

**How accurate is this film's availability data?**

Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.

## Sources

- Streaming availability: The Movie Database (TMDB), refreshed daily.
- Underlying licensing data: JustWatch.
- Canonical URL: https://www.screensearch.co.uk/watch/movie/940644/mother-knows-best-3-2021
- Poster image: https://image.tmdb.org/t/p/w500/8KULeLiPMFwzOIcRXWBH13tfKyv.jpg
- JSON variant: https://www.screensearch.co.uk/watch/movie/940644/mother-knows-best-3-2021.json

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Generated by [ScreenSearch](https://www.screensearch.co.uk/) — a free UK-focused tool that answers "where can I watch this in the UK?" for any film or TV show. No accounts, no signup.