James Cameron Responds to 'Avengers: Endgame' Taking Box Office Record The Marvel film has now officially passed 'Avatar' as the highest-grossing movie of all-time. It is now at $2.79 billion worldwide, compared to 'Avatar's' $2.789 billion. Following the news, Cameron has offered his congrats to 'Endgame' for overtaking his movie. The director released a social media post showing Iron Man with woodsprites that are found on 'Avatar's' fictional planet of Pandora. He also wrote "Oel Ngati Kameie Marvel." "Oel Ngati Kameie" means "I See You" in the language of 'Na'Vi. James Cameron, via social media Cameron's long-awaited sequel to 'Avatar' is expected to drop in December 2021.