Cujo is a 1983 American horror film based on Stephen King's 1981 novel of the same name, directed by Lewis Teague.

It was written by Don Carlos Dunaway and Barbara Turner (using the pen name Lauren Currier)[4][5] and stars Dee Wallace, Daniel Hugh Kelly and Danny Pintauro.

Cujo, a friendly and easygoing St. Bernard, chases a wild rabbit and inserts his head into a cave, where a rabid bat bites him on the nose.

Donna attempts to get to the house to bring an overheated Tad water; she fights Cujo with a baseball bat until it breaks.

[12] It grossed a total of $21,156,152 domestically,[3] making it the fourth-highest-grossing horror film of 1983 behind Jaws 3-D, Psycho II, and Twilight Zone: The Movie.

[14] Variety panned it as "a dull, uneventful entry in the horror genre, a film virtually devoid of surprises or any original suspense".

[15] Gene Siskel of the Chicago Tribune gave the film one star out of four, calling it "one of the dumbest, flimsiest excuses for a movie I have ever seen".

[16] Roger Ebert called it "dreadful",[17] and Linda Gross of the Los Angeles Times wrote that "no theater is air conditioned enough to justify watching this scary, gory and beastly movie".

[23] In 2015, Sunn Classic Pictures announced that it would develop another adaptation titled C.U.J.O., which stands for "Canine Unit Joint Operations".