Which groundbreaking marketing campaign is credited with inventing the modern 'viral marketing' approach for film promotion?

The film and television industry spends billions on marketing each year, with strategies that have revolutionized how entertainment products are sold to audiences worldwide. From viral campaigns to innovative promotional tactics, studios have developed increasingly sophisticated methods to capture viewer attention in a crowded media landscape. Test your knowledge about some of the most influential marketing campaigns that changed how films and TV shows reach their audiences.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The Blair Witch Project (1999), which created a fake documentary style campaign suggesting the 'found footage' was real
The Dark Knight (2008), which used an alternate reality game called 'Why So Serious?' across multiple platforms
Deadpool (2016), which used fourth-wall-breaking billboards and Ryan Reynolds' social media presence
Cloverfield (2008), which released mysterious trailers without titles and created elaborate tie-in websites