From Wiki:
Aside from the very few obvious ones, such as Star Wars (which is referenced by a robot in the movies' stiff gait and the holograms of Muse being projected everywhere), The Matrix (with the protagonist's 'Bring it' hand gesture), Planet Of The Apes (with the statue of liberty in the desert), Westworld (a western set in the future), Mad Max, The Lone Ranger, and Batman, other references are to the television programs Battlestar Galactica, The Lone Ranger, Buck Rogers in the 25th Century and Kung Fu while more obscure references are to High Plains Drifter, Legend, Maverick, Heavy Metal, The Searchers and Blade Runner.