Concierge.com's insider take:
Visitors often wonder about the 30-foot screen on Waikiki Beach at the spot known as Queen's Surf, across Kalakaua Avenue from the Honolulu Zoo parking lot (believe us, you'll see it). The answer: Since 2001, the city has sponsored free movies here every Saturday and Sunday at sunset, in an attempt to bring locals back to Waikiki. Food vendors set up stalls adjacent to the area, though people often come with their own picnic baskets. You'll see folks staking out spots with blankets and chairs starting in the late afternoon, but it's also possible to wander up and find a place on the sand even after the film has started. The intensity of the crowd depends on the popularity of the movie; family films draw the noisiest masses. See the website for a schedule.