The New York Times
Vincent Canby
GREASE is not really the 1950's teen-age movie musical it thinks it is, but a contemporary fantasy about a 1950's teen-age musical—a larger, funnier, wittier and more imaginative-than-Hollywood movie with a life that is all its own. It uses the Eisenhower era — the characters, costumes, gestures and particularly, the music—to create a time and place that have less to do with any real 50's than with a kind of show business that is both timeless and old-fashioned, both sentimental and wise. The movie is also terrific fun.