Parents' Guide to

Piranha (1978)

By Charles Cassady Jr., Common Sense Media Reviewer

age 18+

Extremely gory Jaws rip-off is too much for kids.

Movie R 1978 92 minutes
Piranha (1978) Poster Image

A Lot or a Little?

What you will—and won't—find in this movie.

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What's the Story?

In rural Texas Maggie (Heather Menzies), a brash missing-persons tracer, teams up with Paul (Bradford Dillman), a hard-drinking backwoods single dad, to find some campers, whom viewers already know were killed while swimming -- eaten by something lurking in a mysterious fenced-off reservoir. Paul drains the perilous pool, accidentally releasing into a local river network the movie's menace, a school of US military genetically-engineered piranha fish -- not giant-sized but extra vicious and super-resilient, designed as bio-weapons in Vietnam-style jungle wars. Paul and Maggie try to warn the neighboring river-edge community (and save Paul's little daughter, at a swim-oriented summer camp) but find themselves stonewalled by shady cops, a general, and businessmen covering up the impending bloodbath.

Is It Any Good?

Our review:
Parents say Not yet rated
Kids say (4 ):

Part of the entertainment factor of Piranha is that it has no pretensions of being anything but brisk schlock-horror killfest, intended for drive-ins and grindhouses and nothing more. Word is that Steven Spielberg himself endorsed PIRANHA as the only one of the many, many Jaws rip-offs that had any redeeming value. Despite much bloodletting, the barely-shown-and-better-for-it piranhas aren't exceptionally scary or awe-inspiring, but one appreciates the clever economy in doing lots of vague little water monsters instead of one big, painfully fake one. Still, this one is way too gory for kids, so it is best appreciated by adult film buffs.

Talk to Your Kids About ...

  • Families can talk about the entertainment value of scary movies. What's the appeal of watching piranhas eat people? Does the humorous and social commentary here help?

  • Do scary movies always have to feature gore? Are gory movies always scary?

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