The Marvel universe blockbuster became the fastest movie to earn $1bn, reports the BBC, hitting the $1.2bn mark in five days.
In the US alone, Endgame - which stars Robert Downey Jr as Iron Man - brought in a record $350m, and also enjoyed the UK and Ireland's biggest opening ever with takings of £43.7m.
Empire's Helen O'Hara explains: "we're desperately invested in everything that happens to [the characters]."
