Steven Spielberg’s 1993 film “Jurassic Park” was a landmark cinematic achievement due in large part to its groundbreaking special effects. But it wasn’t the appearance of the raptors, the brontosaurus or the T. Rex that caused Spielberg and his crew to the lose sleep. Rather, it was how to stage the iconic shot of two glasses of water rippling at the steps of the oncoming T. Rex. Meet special effect coordinator Michael Lantieri and take a look at his inspiration for that surprisingly tricky scene.