Colin Trevorrow, the director of the upcoming 'Jurassic World' film, excited fans after he posted the official teaser poster on Tuesday October 14, via Twitter.

The iconic dinosaur park's emblem is depicted on the director's Twitter page with the tagline, "The Park Is Open." Now fans are waiting for new about an official trailer to the film.

Unfortunately the producers behind 'Jurassic World' have not mentioned any specific release dates for a trailer.

However, Ivan Flores, a YouTuber, claims that he was approached to take part in a survey and said that he had seen the screen test of the first official trailer.

Flores' claim appears to be true when the National Broadcasting Company Universal network requested that he remove the video, that described what he saw in the preview screening.

Apparently, the trailer opens with a ferryboat going to Isla Nublar, and heads to the 'Jurassic World' theme park location.

A glimpse of a Gyrosphere in the brochure and a map of the park was also featured. After that the scene shifted to a massive aquatic dinosaur waiting for its meal, a great white shark.

The video then changed once more and showcased chaos after a dinosaur escapes. In the end of the alleged trailer, Chris Pratt's character engages a horde of Velociraptors to help him track down the rogue creature.

The movie is starred by Pratt, Bryce Dallas Howard, Ty Simpkins, Jake Johnson, Nick Robinson, Irrfan Khan, Vincent D'Onofrio, BD Wong, Omar Sy, Judy Greer, Katie McGrath, Lauren Lapkus and Andy Buckley.

The new screenplay is set 22 years after the events of the original 'Jurassic Park' film.

'Jurassic World' is slated to be released on June 12, 2015, which will be available in 2D, 3D theaters and IMAX.