Do knock-offs encourage innovation?, Director Judd Apatow and actor Leslie Mann, Rant or Rave 12/17/2012

Q

Is copying a key part of the creative process? A Q Debate with law professor Christopher Sprigman and business journalist and author Rob Levine. Writer-director Judd Apatow and actress Leslie Mann on the couple's latest comedy, "This is 40." Torquil Campbell's "Rant or Rave". Plus, music from Q's Top 20 albums of 2012.

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