Director Rupert Sanders, formerly of Omaha Pictures, has signed with MJZ. Sanders will also be repped by MJZ in the U.K., where he was formerly represented by Outsider. ... Dan Morales, former creative director at Cliff Freeman and Partners, has joined Canadian agency TAXI as creative director of its New York office, which opened its doors in December. ... Director Mark Tiedemann, formerly of Celsius Films, has signed with CZAR.US for U.S. represenation. In the U.K., Tiedemann is repped by Brave Films. ... Joseph Kosinski, co-founder of New York design firm KDLAB, has signed with Anonymous Content for representation as a commercials director. ... Editor Jane Keller, formerly of The Now Corporation, has joined New York edit house Company X. ... Freelance producer Shari Christensen has joined music house Endless Noise as the company's executive producer.