Universal has booked June 11, 2021, as the opening day for Amblin Entertainment’s Jurassic World 3. The dino threequel has that date all to its own for now. The only other title in proximity is an untitled Disney/Pixar movie opening the following week.. Steven Spielberg and Colin Trevorrow return to executive produce, along with producers Frank Marshall and Pat Crowley. Jurassic World 3 will be written by franchise newcomer Emily Carmichael, along with Trevorrow…