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Richard J. Lewis is a Canadian television and film director. From 2002 to 2009, Lewis worked on the CBS television crime drama series CSI: Crime Scene Investigation as writer, director and co-executive producer. He is best known for directing the films Whale Music (1994) and Barney's Version (2010), the latter featuring a Golden Globe winning performance by actor Paul Giamatti as well as his work on the HBO series Westworld. Wikipedia