Grease is the Word! John Travolta and Olivia Newton-John have reunited for Grease's 40th Anniversary! The stars caught up at a special anniversary screening at Beverly Hills' Samuel Goldwyn Theater. They’re here! Grease 40th anniversary screening with John Travolta and Olivia Newton-John in person! #Grease #johntravolta #olivianewtonjohn pic.twitter.com/8wXULz2uCX — Tom McLaren (@tommclaren1) August 16,...