Helen Kane musical comedy star has been called by Actors Equity, players organaization in New York, to give reason why she left a show in Boston. The show is closing causing a large company of actors to lose employment. Helen said she was suffering from a throat ailment. Arthur Hammerstein, producer of the show charged she appeared on the stage of another Boston theatre later. To reporters Helen said she wasn't worrying about a possible suspension from the stage because she has a talkie picture contract.