The Conductor, a new documentary providing a rare view into the life and career of Marin Alsop — “a character who by her nature chooses her words carefully, and is a self-proclaimed introvert,” says director Bernadette Wegenstein in the film’s official statement.At the same time, the trailblazer in classical music — designated the first woman to lead major classical orchestras in the U.S., South America, Austria, and Britain — is busy finishing out her 14-year tenure as head of the Baltimore