Which of these innovative film marketing campaigns actually happened in real life?

Test your knowledge about groundbreaking product innovations in film marketing campaigns! Major studios often push creative boundaries not just on screen but also in how they promote their biggest releases. From viral marketing stunts to revolutionary merchandising strategies, these campaigns have sometimes become as memorable as the films themselves. See if you can identify which of these innovative marketing approaches actually made it to the real world!

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For 'Inception' (2010), Warner Bros. created dream-sharing pop-up labs where fans could experience a simulated shared dream with strangers using EEG technology
For 'The Blair Witch Project' (1999), the studio launched a website claiming the film was actual found footage of missing students, creating one of the first major viral marketing campaigns
For 'Avatar' (2009), 20th Century Fox developed scent-emitting theater seats that released different aromas synchronized with scenes from Pandora
For 'The Dark Knight' (2008), Warner Bros. created edible Joker cards that dissolved in water to reveal screening locations, distributed in specialty candy stores