There are some great Bill Pullman movies, many of which are still enjoyed by audiences today. But none are quite like the 1995 supernatural family classic, "Casper." The film follows the eponymous friendly ghost, who haunts a mansion in Maine and befriends the young teen (Christina Ricci) that moves there. In the film, Pullman played the young lady's dad, who is doubtful of the ghostly presence in their abode until he encounters it himself. The movie was experimental at the time, as it utilized early technology we now know as CGI to create the ghosts. And, due to the tech being new and underdeveloped, Steven Spielberg gave Pullman a warning about watching his movements on the film.