The comedy that saved John Travolta‘s career 35 years ago was almost canceled, according to its director, who says “John was box-office poison.” The actor rose to fame for his role in the ABC sitcom Welcome Back, Kotter from 1975 to 1979. In the following years, Travolta gained further recognition with two of his most iconic performances in Saturday Night Fever, earning his first Oscar nomination, and Grease, which were both massive box-office hits that propelled Travolta to global fame.
https://screenrant.com/look-whos-talking-movie-john-travolta-career-save/