Trivia: When the pterosaur flies into the restaurant, a man in a blue denim shirt wearing a safari-brim tan fedora and a red handkerchief tied around his neck can be seen jumping away from the creature. It is not Alan Grant, but this extra was dressed in the same outfit Dr. Grant wore in the original Jurassic Park.
Trivia: Jimmy Buffet can be seen running back to get his margarita during the winged dinosaur attack on park visitors. (01:18:50)
Trivia: The T-rex in Jurassic World has visible scars on its body, presumably from fighting the raptors at the end of Jurassic Park. It is the same T-rex as in the original film.
Trivia: Partly filmed in abandoned six flags park, Six Flags New Orleans. The park was destroyed by hurricane Katrina in 2005.
Trivia: At Lowery's work station (the guy with the toy dinosaurs) is a book propped up - it is by Dr. Ian Malcolm, Jeff Goldblum's character from Jurassic Park.
Trivia: The movie's original title was "Jurassic Park: Extinction."
Trivia: The spinosaur skeleton in the park is a nod to Jurassic Park III.
Trivia: Dr. Wu is the only character from the original Jurassic Park.
Trivia: The voice of the Monorail Announcer is that of the American film director Brad Bird.
Trivia: Director Colin Trevorrow provided the voice of the cartoon character Mr. DNA.
Trivia: Prior to the film's release, there was controversy over who actually wrote the film. According to director Colin Trevorrow and writer Derek Connolly, Rick Jaffa and Amanda Silver, who were credited for the screenplay and story, wrote a script that was completely different from the finished product, with only the element of dinosaurs being used in military practices being taken from Jaffa and Silver's script. They launched an appeal with the Writer's Guild of America, but the WGA held their stance and Jaffa and Silver were credited.
Trivia: Vivien's line, "I have a boyfriend", was ad-libbed was Lauren Lapkus. Director Colin Trevorrow was so impressed with the line that he decided to keep it in the final print.
Trivia: The jeep with the number 29 fixed by the kids is the very same one used by Hammond in Jurassic Park.
Trivia: In the main lobby there is a statue of John Hammond, who was the owner of the park in the first 2 films.
Answer: Chances are either the gates were left open after the Pterosaur attack to allow visitors to escape quickly, or Hoskins had left them open earlier and forgot to close them to try and justify using the raptors as weapons.