Governor Neil Abercrombie signed a law last week that boosts tax credits for filmmakers who shoot here in Hawaii.  The measure increases film tax credits from 20 to 25 percent in counties with fewer than 700,000 people.  It also raises tax credits from 15 to 20 percent in counties like Honolulu with larger populations.  Movie productions can claim a credit of up to $15 million, beginning July 1st.  Those supporting the measure say it will help diversify Hawaii's economy and add jobs.  But, critics complain there should be more tax relief for residents, not movie producers.