You had been invited to Jurassic Park (you choose what your purpose was for being invited, whether being given a job opening, or being an adopted kid of Alan grant/Ellie Sattler, or Ian, or a grandkid of Dr. Hammond, y'know like anything), you were there on the helicopter, you were there through the jeep rides.

You and the rest of the crew, Ian Malcolm, Alan Grant, Ellie Sattler, and Dr. Hammond plus the insurance lawyer Donald Gennaro soon made it to the 'theatre' where an Anthropomorphic DNA helix cell shaped cartoon-like guy on the screen introduced himself as 'Mr. DNA' and explained how they(InGen) recreated dinosaurs by extracting the blood the mosquito drank out of the dinosaurs from mosquitoes trapped in Amber(Fossilized Sap) and filled in the missing DNA atoms with frog DNA.

Alan and Ellie were absolutely fascinated, while Ian sat up more straight; his eyes fixated on the big screen, he stopped chewing his gum momentarily to pay attention.