San Diego: Twenty years after his Velociraptors and T.rex ruled Jurassic Park, director Steven Spielberg says the maneaters are returning to a movie theater near you - teeth sharpened, and not for the popcorn. Spielberg on Thursday told audiences at the giant Comic-Con International convention in San Diego that he was at work on a new âJurassic Parkâ movie, delighting a packed house at the pop culture showcase. "We have a story. We have a writer working on the script, and I think we will see a 'Jurassic 4' in our foreseeable future, probably in the next two or three years." âJurassic Parkâ thrilled audiences in 1993 with its modern-day dinosaurs developed from DNA in fossils that wreaked havoc upon a theme park where, instead of enjoying the wonders of science, the guests got eaten. The movie took in $915 million worldwide in its day and spawned two sequels. Spielberg made his first trek to Comic-Con this year to show audiences clips from his upcoming film, âThe Adventures of Tintinâ, which was directed by the Oscar winner and produced by âLord of the Ringsâ filmmaker Peter Jackson. It is scheduled for release in December of this year. The movie is based on the comic books by Belgian artist Georges Remi, whose pseudonym was Herge, and they tell of a young journalist and his faithful dog who find themselves on numerous adventures, solving mysteries. Spielberg said he and Jackson, a pair of filmmakers he characterized as "just two huge Tintin fanboys," began conceptualizing the movie as many as six years ago. He said they used state-of-the-art digital camera technology and capitalized on innovations developed by director James Cameron on his smash hit movie, âAvatarâ."We wanted to use animation to get as close to the characters that (Herge) invented and not characters that we would then reinvent based on big names, big movie stars," Spielberg said. The director, a sci-fi film fan since childhood who made the genre movies "E.T. The Extra-Terrestrial" and "Close Encounters of the Third Kind," was at Comic-Con to receive an Inkpot Award for achievement in science-fiction movies. He received a standing ovation from the crowd and told them: "We all love the same source material that has brought all of us here and the source material has always been the collective imaginations of so many brilliant artists and storytellers."