Danny DeVito chats with ET's Denny Directo at the Los Angeles premiere of 'Poolman,' in theaters on May 10. The actor shares an update on an upcoming movie with his 'Twins' co-star, Arnold Schwarzenegger. Plus, Danny reacts to Colin Farrell's 'Batman' spinoff series, 'Penguin,' after starring as the famous villain in 1992's 'Batman Returns.'