Avengers: Endgame has become the most tweeted-about film ever.
The fourth and final episode in the Avengers series has been included in more than 50 million tweets, Twitter said.
It is not the only record the movie has set.
The estimated £43.4m it took across its first four days in UK and Irish cinemas gave it the biggest opening here, according to distributor Disney.
It also smashed box office records worldwide, becoming the first release to take more than $1bn during its first weekend.
The most talked-about character on Twitter was villain Thanos, played by Josh Brolin, followed by Chris Hemsworth’s Thor, Robert Downey Jr’s Iron Man, Chris Evans’ Captain America and Mark Ruffalo’s Hulk.
Avengers: Endgame was the culmination of 22 films over 11 years in the Marvel Infinity Saga universe.
Prior to its release, Robert Downey Jr warned people against giving out spoilers.
He tweeted a gif of Captain America and said: “Cap knows best… Keep those spoilers to yourself…”
The film’s directors, Anthony and Joe Russo, and makers Marvel Studios used the hashtag #DontSpoilTheEndgame on social media to urge fans to keep any comments spoiler-free.
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The three-hour epic has been hailed the “perfect goodbye” and both “tragic and uplifting” by critics, with mainly positive reviews and scores of 9.2 and 96% on IMDB and Rotten Tomatoes respectively the day after its release.