Also from our team — ToolYour: Best free online file converters, SEO toolkit, developer toolkit, resume builder & more.

Age-restricted? YouTube often blocks those trailers inside other sites. Use the button to watch on YouTube — you may need to sign in and confirm your age.

Watch on YouTube

Trailer from TMDb metadata; playback via YouTube. If the player shows a restriction, use "Watch on YouTube" above.

Community reviews

From TMDb members · 2 total
  • John Chard5/10

    "Suggest we fly to another world" Whilst I wholeheartedly agree with other amateur reviewers on line that stress you have to put yourself back to 1951 to appreciate the film more, it still doesn't take away from the fact that the film is one of the poorer offerings from the di…

  • JPV8526/10

    Entertaining enough apocalyptic disaster film from the 1950s has some absolutely adorable miniatures and one awful matte painting at the end. Still, has its moments and the acting at least was passable. **2.75/5**

Open reviews section

Full text & links on TMDb in the reviews section below.

Rent, buy & download

Official stores and apps (Apple TV, Prime Video, Google Play, and others) let you rent or buy this title; many include offline downloads inside their app after purchase.

See rent, buy & download options

Stores (rent / buy)

  • Amazon Video logoAmazon Video
  • Apple TV Store logoApple TV Store
  • Google Play Movies logoGoogle Play Movies
  • YouTube logoYouTube
  • Fandango At Home logoFandango At Home

Also on subscription

  • fuboTV logofuboTV
  • MGM+ Amazon Channel logoMGM+ Amazon Channel
  • MGM Plus logoMGM Plus
  • Philo logoPhilo

Showing availability for region US. Opens The Movie Database / partner listings — not affiliated withWatchMind.

When Worlds Collide

Planets destroy earth!

Released
1951-09-14
Rating

64%

Type

Movie

Runtime

1h 23m

Science FictionDrama

AI Analysis

When Worlds Collide (1951) — AI movie analysis

WatchMind AI

WatchMind AI generated this AI analysis of When Worlds Collide (1951) — a movie tagged as Science Fiction and Drama with balanced tone moods and fast-paced pacing.

fast-paced pacingsolo focused viewing

Story & themes: When a group of astronomers calculate a star is on a course to slam into Earth, a few days before, it's accompanying planet will first pass close enough to the Earth to cause havoc on land and sea. They set about building a rocket so a few selected individuals can escape to the planet. Our models also surface themes such as identity, conflict, and relationships from synopsis and genre signals.

Watch context: Best suited for solo focused viewing. Expect fast-paced storytelling (~83 min).

Community signal: TMDb members rate When Worlds Collide 64% (203 votes) — solid community ratings for this movie.

AI verdict

Use this AI analysis as a quick read on When Worlds Collide before you watch — trailer, TMDb reviews, and licensed streaming links on this page help you decide.

Algorithmic AI analysis from genres, synopsis, pacing heuristics, and TMDb community scores — not a generative chatbot. How WatchMind works.

Insights

Audience & engagement

How WatchMind visitors interact with this title — views, saves, sentiment, and taste match when you're signed in, or a device preview while browsing. Aggregates are anonymous; last 30 days.

Early data — charts fill in as more people explore this title.

TMDb audience score

64%

from 203 TMDb votes

Your taste match

Browse a few titles or complete the vibe check — we'll show your match % here.

  • Your rating
  • Watch queueNot saved

WatchMind sentiment

No thumbs or dismissals yet. Rate this title to help others see likeness trends.

Dismissals
0

Engagement breakdown

Page views0
Saved to queue0
Trailer plays0
Where to watch clicks0
Related title clicks0

0 unique visitors · no audience notes yet

Views trend (14 days)

2026-05-11: 0 views2026-05-12: 0 views2026-05-13: 0 views2026-05-14: 0 views2026-05-15: 0 views2026-05-16: 0 views2026-05-17: 0 views2026-05-18: 0 views2026-05-19: 0 views2026-05-20: 0 views2026-05-21: 0 views2026-05-22: 0 views2026-05-23: 0 views2026-05-24: 0 views
05-1105-24

Daily title page views on WatchMind

Synopsis

When a group of astronomers calculate a star is on a course to slam into Earth, a few days before, it's accompanying planet will first pass close enough to the Earth to cause havoc on land and sea. They set about building a rocket so a few selected individuals can escape to the planet.

Quick facts

Type
Movie
Status
Released
Release date
1951-09-14
Runtime
1h 23m
TMDB rating
6.4
TMDB ID
16380

Watch & discovery tips

  • Read TMDb member reviews in the reviews section, and audience tips from other WatchMind visitors in Audience notes.
  • Use Rent, buy & download for official stores; offline viewing is usually inside their apps.
  • Browse trending and top-rated movies from the main Movies page.
  • Add titles to your watch queue from this page — order matters; the top pick can surface on your home page when you're logged into the same browser session.

Frequently asked questions

Where can I watch When Worlds Collide (1951)?

When Worlds Collide is available for discovery on WatchMind. You can find official links to rent, buy, or stream from licensed digital stores like Apple TV and Amazon in our "Where to Watch" section.

Is there an official trailer for When Worlds Collide?

Yes, you can watch the official trailer for When Worlds Collide directly on this page. We pull the latest video metadata from TMDb and play it via YouTube integration.

What is When Worlds Collide about?

When a group of astronomers calculate a star is on a course to slam into Earth, a few days before, it's accompanying planet will first pass close enough to the Earth to cause havoc on land and sea.... This is the official synopsis available via TMDb community metadata.

Is there an AI analysis for When Worlds Collide?

Yes. WatchMind publishes an AI analysis on this page — tone, pacing, audience fit, and community scores from TMDb metadata and recommendation models (not a chatbot). Scroll to the AI Analysis section or read the meta description summary.

How long is the movie When Worlds Collide?

The official runtime for When Worlds Collide is approximately 83 minutes.

Cast & crew

Names and photos from The Movie Database (TMDb). Follow links on themoviedb.org for full filmographies.

Audience notes

Quick tips, watch-order ideas, and “worth it?” takes from other WatchMind visitors — not from TMDb. Reply to continue a thread, tap Helpful to surface useful notes, and keep things kind — no spoilers in the first line when you can help it.

0 / 2000

Discussion0 notes

No notes yet — be the first to leave a suggestion for the next viewer.

Community reviews

Written by TMDb members — same catalogue as our movie & TV metadata. API terms

2 on TMDb
  • John Chard profile picture
    John Chard5/10
    View on TMDb

    "Suggest we fly to another world" Whilst I wholeheartedly agree with other amateur reviewers on line that stress you have to put yourself back to 1951 to appreciate the film more, it still doesn't take away from the fact that the film is one of the poorer offerings from the disaster/sci-fi genre of years gone by. The methodical build up of characters is fine for adding weight to the final reel, the effects are solid for the time, and the ending has an element of heart tugging hope to it, but the film still remains a drawn out laborious watch. No amount of shouting about lack of budget and the time frame of its birth can't detract that the film over relies on heavy dialogue to keep the viewer interested. This is all well and good if the pay off is handsome in the extreme, which sadly isn't the case on this occasion. I have taken myself back to 1951, and for that reason alone I give it the average rating of 5/10, while I certainly have no hesitation in recommending this to genre fans for at least one watch. It deserves to be looked at, and it deserves respect of course, but that doesn't mean it's particularly above average either.

  • JPV852 profile picture
    JPV8526/10
    View on TMDb

    Entertaining enough apocalyptic disaster film from the 1950s has some absolutely adorable miniatures and one awful matte painting at the end. Still, has its moments and the acting at least was passable. **2.75/5**

Hand-picked from TMDb similar and recommended lists for When Worlds Collide. Each link opens a full WatchMind page with synopsis, trailer, community reviews, and official store links—so you can compare tone and audience overlap before you pick what to watch next.

About WatchMind AI

WatchMind AI (WatchMind) recommends movies and TV using AI-assisted algorithms — taste profiles, semantic matching, and embedding similarity process your browsing, queue saves, ratings, and engagement into personalised picks: For You rails, daily suggestions, mood feeds, and match scores. Trailers, TMDb review excerpts, and licensed where-to-watch links support each pick. We do not host or stream full films or episodes.

Browse movies, TV series, and curated feeds such as Story Hunt. Title pages include synopses, cast, where-to-watch data from TMDb, and structured data for search engines. Personalised rails and your profile use optional Google sign-in (name, email, and account ID only to identify you — see the homepage section "What we collect and why"). The catalogue remains readable without an account.

Privacy Policy · Terms of Service. Catalogue metadata from TMDb. Sitemap: https://smartwhattowatch.com/sitemap.xml.