Sarah Michelle Gellar's shared a mind blowing fan theory about the massively popular musical film Grease.
The Buffy star took to Facebook to share the theory which essentially says Sandy - the film's leading lady - is actually dead, and the whole film is just a fantasy scenario.
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She wrote: "At the end of the movie, Danny Zuko and Sandy Olsson fly off in a red convertible as they wave goodbye to their friends on the solid ground below, leading to the conclusion that the flying car was the final result of Sandy's fantasy. (As in she is dead)."