John Travolta is sharing a tribute to his Look Who's Talking co-star Kirstie Alley, following the news that she has passed away at the age of 71. On Monday night, shortly after a statement from Alley's children announced the news, Travolta took to Instagram to share a photo of them together. The duo not only starred together in the 1989 film Look Who's Talking, but in two sequels, 1990's Look Who's Talking Too and Look Who's Talking Now.