Prior to Game of Thrones' epic "Battle of the Bastards" clash on Sunday night, HBO gave viewers a first glimpse of its latest big-budget drama, premiering this fall. Westworld has been in development since 2013, is executive produced by J.J. Abrams… and judging by the first trailer, will be wildly imaginative.

Created by Jonathan Nolan and Lisa Joy, Westworld takes it lead from the 1973 sci-fi film of the same name, and features humans experiencing a western theme park of the future. There's Anthony Hopkins, Evan Rachel Wood, Ed Harris and Jeffrey Wright, as well as lots of the sex and violence that GoT fans have gotten used to on Sunday nights.

Westworld premieres in October on HBO. Speaking of HBO, did you hear that Curb Your Enthusiasm is coming back?!