Poltergeist (1982)

The production crew used real human skeletons in the pool because they were cheaper to purchase than plastic ones. JoBeth Williams was hesitant about shooting the swimming pool scene because of the large amount of electrical equipment positioned over and around the pool. In order to comfort her, Steven Spielberg crawled in the pool with her to shoot the screen. Spielberg told her, “Now if a light falls in, we will both fry.” The strategy worked and Williams got in the pool.