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 YouTubeTrailer from TMDb metadata; playback via YouTube. If the player shows a restriction, use "Watch on YouTube" above.
No written reviews for this title yet in our TMDb feed. Check the reviews section below, or add yours on themoviedb.org.
Your rating
Where to stream
Region US. Update where you watch
Subscription streaming
Opens partner listings via The Movie Database — not affiliated with WatchMind.
Spawn of the Slithis
“Hell hath no fury... like Slithis”
45%
Movie
1h 26m
AI Analysis
Spawn of the Slithis (1978) — AI movie analysis
WatchMind AI generated this AI analysis of Spawn of the Slithis (1978) — a movie tagged as Horror and Science Fiction with dark moods and fast-paced pacing.
Story & themes: A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California. 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 (~86 min).
Community signal: TMDb members rate Spawn of the Slithis 45% (43 votes) — mixed but watchable scores for this movie.
AI verdict
Spawn of the Slithis suits viewers who want a dark film — check the trailer and reviews before committing a full evening.
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
45%
from 43 TMDb votes
WatchMind sentiment
No thumbs or dismissals yet. Rate this title to help others see likeness trends.
- Dismissals
- 0
Engagement breakdown
0 unique visitors · no audience notes yet
Views trend (14 days)
Daily title page views on WatchMind
Synopsis
A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.
Quick facts
- Type
- Movie
- Status
- Released
- Release date
- 1978-07-21
- Runtime
- 1h 26m
- TMDB rating
- 4.5
- TMDB ID
- 83172
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 Spawn of the Slithis (1978)?
Spawn of the Slithis 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 Spawn of the Slithis?
Yes, you can watch the official trailer for Spawn of the Slithis directly on this page. We pull the latest video metadata from TMDb and play it via YouTube integration.
What is Spawn of the Slithis about?
A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.
Is there an AI analysis for Spawn of the Slithis?
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 Spawn of the Slithis?
The official runtime for Spawn of the Slithis is approximately 86 minutes.
Cast & crew
Names and photos from The Movie Database (TMDb). Follow links on themoviedb.org for full filmographies.
Directors & writers
Cast
- A
Alan Blanchard
Wayne Connors
- J
Judy Motulsky
Jeff Connors
- J
J.C. Claire
Dr. Erin Burick
- D
Dennis Falt
Dr. John
- M
Mello Alexandria
Chris Alexander
- W
Win Condict
The Monster
- R
Rocky Fumarelli
Preston, wino #1
- J
John Hatfield
Bunky, wino #2

Hy Pyke
Jack Dunn
- D
Daphnae Cohen
Helen Dunn
- S
Steven J. Hoag
Doug
- W
Wendy Rastattar
Jennifer
- D
Don Cummins
Rex
- D
Dave Carlton
Drunk #1
- D
Dale Caldwell
Drunk #2
- K
Ken Stimson
Drunk #3
- D
David Ridenour
Policeman at house
- G
Gregory Clemmons
Chris' Uncle
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.
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
No written reviews are available for this title in TMDb yet. Check back later or open the title on themoviedb.org.
More to explore
Hand-picked from TMDb similar and recommended lists for Spawn of the Slithis. 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.

Underwater
Action · Adventure

Them!
Horror · Science Fiction

X: The Unknown
Horror · Mystery

Island of Terror
Horror · Science Fiction

Godzilla: King of the Monsters
Action · Science Fiction

The Andromeda Strain
Science Fiction · Thriller

The Asphyx
Fantasy · Horror

The Meg
Action · Horror

It's Alive
Horror · Science Fiction

Rampage
Action · Adventure

Venom
Action · Science Fiction

Phase IV
Horror · Science Fiction