JJ Abrams is well know for having his favourite references, and he's included one very personal one that sneaks into almost all of his productions. As Rey tells BB-8 how to stay safe at the start of the film (and attempts to banish him), she instructs him to "stay off Kelvin Ridge" (according to Hitfix). That's a nod back to Abrams' grandfather, a film-maker who was a big influence on him. He's been referenced so far in Star Trek (the USS Kelvin); in Lost (Clancy Brown's character Kelvin Joe Inman); in Fringe as Kelvin Genetics; in Mission: Impossible III on a postcard Ethan Hunt receives and in Super 8 it's the name of a gas station. Abrams also has a couple of other personal Eggs in there: as well as giving Michael Giacchino an unseen cameo, he also cast Lost alumni Greg Grunberg and Ken Leung. There's no confirmation of his other favourite tics - like including The Dharma Initiative somehow - but expect them to be uncovered after multiple viewings.