Kevin Spacey and his production companies must pay the studio behind House of Cards more than $30 million because of losses brought on by his firing for sexual misconduct, according to an arbitration decision made final recently. A document filed in Los Angeles Superior Court requesting a judge’s approval of the ruling says that the arbitrators found that Spacey violated his contract’s demands for professional behavior by “engaging certain conduct in connection with several crew members in each of the five seasons that he starred in and executive produced House of Cards.”