Joe Hayes: Oh, I'll sleep fine. No imagination.
Lucas: I hope you ain't going to blow up my boat, Mr. Johnson. Like my wife, she's not much but she's all I have.
George Johnson: What I'd give for a tall, cold beer.
Joe Hayes: A short, warm blonde.
Directed by: Jack Arnold
Starring: John Agar, Lori Nelson, John Bromfield, Nestor Paiva
Joe Hayes: Oh, I'll sleep fine. No imagination.
Lucas: I hope you ain't going to blow up my boat, Mr. Johnson. Like my wife, she's not much but she's all I have.
George Johnson: What I'd give for a tall, cold beer.
Joe Hayes: A short, warm blonde.
Revealing mistake: Air can be seen coming out of the creature's head at one point in one of the tank scenes.
Trivia: Clint Eastwood has a small role as a lab technician experimenting with mice.