For nearly a century, no single movie had ever reached the $1 billion mark at the global box office. That changed in 1997 with James Cameron’s 'Titanic.' Despite a disastrous production filled with delays, injuries, and a ballooning budget that led critics to predict it would be the biggest flop in history, the film became a cultural phenomenon. It stayed at #1 in the U.S. for 15 consecutive weeks. By early 1998, it became the first film to cross $1 billion, eventually reaching $1.8 billion in its initial run. It held the title of highest-grossing film of all time for 12 years until Cameron beat his own record with 'Avatar' (2009). The success of 'Titanic' proved that international markets were just as important as the domestic ones, permanently shifting how Hollywood studios calculate the potential value of their blockbusters.