Piranha
USA 1978. Director: Joe Dante
Cast: Bradford Dillman, Kevin McCarthy, Barbara Steele, Dick Miller

Piranhas are unleashed into the river and are now chewing their way towards a summer resort full of bathing tourists. Slightly overrated but classic Roger Corman production has its moments and good piranha effects but is somewhat unremarkable with an unsatisfying ending. Nowhere near as entertaining as Alligator, also scripted by John Sayles, but way way better than the sequel.