Miles collapsed and later expressed his amazement o the doctors: "I can""t believe this! My doctor said I""d be up and on my feet in five days." He was also straightforward about his alcoholism:I wouldn""t admit this to anyone but you, but I drink oo much.However, the studio, after negative reactions to preview screenings, re-edited the film to soften its harsh conclusion in which Caesar called on apes to enslave humanity.The next year, Travolta co-starred with Australian singer Olivia Newton-John in Randal Kleiser""s popular, spirited, nostalgic 50s filmGrease (1978)with smutty dialogue - it was a former 1972 hit Broadway musical that brought two big hit songs: "Summer Nights" and "You""re The One That I Want", to the charts.