Question: The year 1957 in film involved some significant events, with "The Bridge on the River Kwai" topping the year's box office and winning the Academy Award for what?
Sentence (from "The Bridge on the River Kwai"): Based on the novel "Le Pont de la Rivière Kwai" (1952) by Pierre Boulle, the film is a work of fiction, but borrows the construction of the Burma Railway in 1942–1943 for its historical setting.
Relevant evidence: No