Variety:

Jonathan Nolan and Lisa Joy are the latest high-profile creators to make the move to a streaming platform.

Variety has learned that Nolan and Joy and their Kilter Films banner have signed a massive overall deal at Amazon, meaning the pair will exit their current deal with Warner Bros. Television. Sources say the new deal is worth $150 million over five years. Amazon declined to comment.

They’ll still be working on Westworld for HBO, but this is a big grab from Amazon.