As he travels the country searching for Americans to dupe into appearing in his next film, comedian Sacha Baron Cohen is operating behind a series of dummy companies and web sites intended to mask his involvement in the follow-up to the hit "Borat" movie. Claiming to be preparing a documentary for German television, Cohen and his production team have recently approached interview subjects (ballroom dancers, Alabama National Guard officials, and a white supremacist) claiming to be affiliated with Amesbury Chase, a Los Angeles-based production company. In his new film, Cohen appears as "Bruno," a gay Austrian journalist who asks embarrassing (and sexually charged) questions. Prospective interviewees have been directed to the Amesbury Chase web site, which describes the firm as having "world class facilities, and state-of-the art equipment to help you create dynamic and compelling content." The firm's address is actually a box at Sunset Blvd.