A "highest-grossing film" refers to a movie that has earned the most revenue at the box office worldwide. This figure includes ticket sales from theaters and can be influenced by factors such as marketing, star power, and audience demand. The title of highest-grossing film can change over time as new movies are released and box office records are broken. As of October 2023, the highest-grossing film is Avatar, directed by James Cameron. It surpassed previous record-holders like Titanic and Avengers: Endgame due to its groundbreaking visual effects and global appeal. Box office earnings are often reported in terms of billions of dollars.