Watch the nostalgic trailer for Spielberg's 'Ready Player One

After no shortage of hype, Warner Bros. is finally ready to show what Steven Spielberg's take on Ready Player One is all about. The studio has released the first trailer for the adaptation of Ernest Cline's novel, and it's clear that the flick is playing up not just the book's disjunction between a dystopic real world and VR, but the endless references to pop culture of decades gone by. Some of them are patently obvious in the clip -- you'll see a famous time-traveling car and a certain giant robot -- but some are of the blink-and-you'll-miss-it variety. Take Duke Nukem in the epic battle above, for example.

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Steven Spielberg debuts action-packed Ready Player One trailer at