In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be observed by scientists.
Directed by Jack Arnold
florida
monster
panic
aquarium
ocean
marine biologist
amazon rainforest
sequel
creature
scientist
underwater
flipping car
sea monster
lagoon
amazon river
Trailer
IMDB
N/A
Letterboxd
2.9 / 5
Where to Watch
Cast
John Agar
Prof. Clete Ferguson
Lori Nelson
Helen Dobson
John Bromfield
Joe Hayes
Nestor Paiva
Captain Lucas
Grandon Rhodes
Jackson Foster
Dave Willock
Lou Gibson
Robert B. Williams
George Johnson
Charles Cane
Police Captain
Loretta Agar
Woman on Boat (uncredited)
Bill Baldwin
Patrol Boat Dispatcher (voice / uncredited)
Ricou Browning
The Gill Man (in water) / Lab Technician (uncredited)
Diane DeLaire
Miss Abbott (uncredited)
Crew
Jack Arnold
Director
William Lava
Original Music Composer
William Alland
Producer
Bud Westmore
Makeup Artist
William Alland
Story
Robert F. Hoy
Stunts
Henry Mancini
Music
Frank Skinner
Music
Popular Reviews
28 reviews
Maud Gone
7.0★ · 02/08/26
Images feel a little more flat or washed out in this one, but overall still quite good. The King Kong plot is a bit basic but it works
Images feel a little more flat or washed out in this one, but overall still quite good. The King Kong plot is a bit basic but it works
Hhh
6.0★ · 01/03/26
free my boy 💔
free my boy 💔
Fleshforphantom
5.0★ · 11/08/25
No me gustaron las escenas en el agua. La criatura se sentia demasiado como un hombre en traje nadando. Siento q en la primera lograron mejor el efecto, y eso q es el mismo actor en las 2 peliculas
No me gustaron las escenas en el agua. La criatura se sentia demasiado como un hombre en traje nadando. Siento q en la primera lograron mejor el efecto, y eso q es el mismo actor en las 2 peliculas
KuniaCat
5.0★ · 10/22/25
What a smart monkey
What a smart monkey
vConquerorPRO
5.0★ · 08/31/25
Not too great but at least the creature was in it plenty, even if he was in a "coma" or chained to the bottom of a ocean exhibit for most of the runtime 😆😆 The guy who got thrown by the creature and folded round the tree go a big laugh out of me 🤣
Not too great but at least the creature was in it plenty, even if he was in a "coma" or chained to the bottom of a ocean exhibit for most of the runtime 😆😆 The guy who got thrown by the creature and folded round the tree go a big laugh out of me 🤣
