Not only is Steven Spielberg bringing dinosaurs to television this fall (Terra Nova on Fox), but he’s also just announced at Comic Con that he’s moving forward with a 3rd ‘Jurassic Park’ sequel, ‘Jurassic Park 4’.

During a Comic Con panel for ‘Tintin’, the prolific producer/director announced that they are working on ‘Jurassic Park 4’. They have a story and writer doing a treatment. And are hopeful that they will make the film in the next two or three years.

Also director Joe Johnston, currently out promoting ‘Captain America: The First Avenger’, has mentioned that he is in talks to direct ‘Jurassic Park 4’ and that it may involve a trilogy of new films. Johnston also directed 2001’s ‘Jurassic Park 3’.

Starting as a blockbuster novel from mega-author Michael Crichton, the 1993 Spielberg directed ‘Jurassic Park’ was a mega hit taking in $914 million in theaters. The film also helped usher in photo-realistic special effects that set a new standard in films.

Spielberg also directed the 1997 sequel ‘The lost World: Jurassic Park’ which took in $618 million at the box office. With ‘Jurassic Park 3’s $368 million box office take, the franchise has racked up more than $1.9 billion not including books, video games and other merchandise.