"Jurassic Park IV" will debut a never before seen deadly dinosaur, says Jack Horner, the dinosaur advisor on the "Jurassic Park" film series.
"I can't actually tell you who that will be. But you'll want to keep the lights on after you see this movie," said the paleontologist.
The fourth film was finally confirmed to be produced early this year, reported Ace Showbiz.
Steven Spielberg, the director of the first two installments, is executive producing, while Frank Marshall and Patrick Crowley are serving as the producers of this series.
Last March, the sequel to "Jurassic Park III" finally found its helmer.
Colin Trevorrow, who directed critically acclaimed "Safety Not Guaranteed", has been set to serve behind the lens.
Having not announced the cast yet, "Jurassic Park IV" is expected to hit theaters on June 13, 2014.
