John Travolta (© Joseph Marzullo/WENN) John Travolta and wife Kelly Preston are parents to son Benjamin, according to a report on People.com. The child was born on Tuesday in Florida. Travolta and Preston also have a daughter, Ella Beau. Travolta is perhaps best known for his work in such iconic films as Grease, Saturday Night Fever, Hairspray and Pulp Fiction. On Broadway, he appeared in Grease and Over Here!.