In early 2007, Sam Neill said he had not yet been approached to play Alan Grant’s character, even though actress Laura Dern had already received the producers’ invitation to play her character from Dr. Ellie Sattler. Contrary, Joe Johnston announced that he was not yet filming the film.
Actor Richard Attenborough was contacted to return in his role as John Hammond. The composer John Williams, also was summoned to create the soundtrack. In turn, Laura Dern told TV Guide magazine, that Jurassic Park IV was not a speculation, and that her character has already been confirmed for the development of the main plot. Due to the “Screenwriters Strike” in Hollywood in 2007-2008, the film paused its production, so the studio delayed the release date for a time span between 2012 and 2014. During the 2011 San Diego Comic-Con, Steven Spielberg confirmed, while promoting ” the Adventures of Tintin” , which would be a new film Jurassic Park, but did not specify if it would be a prequel, a sequel or a reboot of the saga.
In 2012, Steven Spielberg and screenwriter Mark Protosevich, gathered to make a brainstorm of history, later revealing the course of the sequel: ” The most important thing I can say is that it begins a new trilogy that will go in a different direction . An address that will be very exciting and completely different from everything we have seen. It begins with the story of the first trilogy, but that revolves in a completely different direction. »
In June 2012, the screenwriters Rick Jaffa and Amanda Silver, responsible for the libretto of Rise of the Planet of the Apes , were hired to rewrite the final script.
On July 21, 2012, in an interview Frank Marshall said that Jurassic Park IV “will be released over a period of two years” . He also stated that it would be launched during the summer since it would be a ” popcorn movie .” He spoke about advances in CGI and that would be present in the film, but without losing the animatronic dinosaurs, ” That’s what’s going to be good, technology has taken a leap and now we can really do great things. ” He later clarified that the plot of” dinosaurs with guns “was only a rumor and have nothing to do with the film. Months later, in January of 2013, Universals Pictures officialized the 13 of June of 2014 like fixed date of premiere, initiating thus the production of the film.