A government sting operation aimed at union activities, which included the set-up of a phony film production company in Santa Monica, has resulted in the arrest of James M. Moar, former union VP and entertainment coordinator of Teamsters Local 25 in Boston.Moar was arrested yesterday in Massachusetts, following a sealed indictment last month by a federal grand jury in Boston, for conspiracy to receive a labor bribe and interstate transportation in aid of racketeering. The undercover probe, code named “Dramex,” involved Labor Dept. and FBI special agents setting up a movie production company, David Rudder Prods., in Santa Monica. The plan was to seek out union officials and organized-crime associates who would solicit bribes to permit non-union work. According to the indictment, Moar and other defendants conspired to bribe labor union officers between March 1989 and June 1990. In return, the production company could film movies in Boston, Providence, R.I., and Las Vegas without union personnel. In addition to conspiracy charges, the superseding indictment alleges 10 counts involving travel in interstate commerce and use of the telephone with intent to bribe. Moar was a longtime Local 25 VP and business agent who lost a re-election bid in December 1991. One of his principal duties was the supervision of union members assigned to work on movie and television productions. In July, Boston agents charged another Teamster official and the three reputed mobsters with bribing Boston and Las Vegas union officials to let a film company make a movie without union workers. Francis P. Salemme Jr., Dennis D. Lepore and Thomas L. Hillary, alleged members or associates of the Patriarca crime family, were charged with conspiracy and racketeering. Also charged was William M. Winn, an official of Teamsters Local 25 in Charlestown, whom the government did not link to organized crime. The investigation was conducted jointly by the Office of Labor Racketeering and the Federal Bureau of Investigation.