Which famous product placement deal was initially offered to M&M's, who declined, resulting in a competitor seeing a 65% sales increase after the film's release?

Product placement has become an art form in modern film and television. From subtle background appearances to plot-driving branded items, the integration of real products into fictional narratives represents billions in marketing spend annually. This practice has evolved dramatically since E.T.'s famous Reese's Pieces moment in 1982. Test your knowledge about this fascinating intersection of commerce and entertainment!

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Reese's Pieces in 'E.T. the Extra-Terrestrial' (1982)
Ray-Ban sunglasses in 'Risky Business' (1983)
FedEx in 'Cast Away' (2000)
Pepsi in 'Back to the Future Part II' (1989)