Harry Potter and the Goblet of the Fire has broken UK box office records, according to the studio that made the film, Warner Brothers.
They said more than £14.9m of tickets were sold in the UK in the first three days of it hitting cinemas.
That's the biggest ever opening weekend for a film in the UK, as well as the biggest takings ever for a Friday, a Saturday and a Sunday.
Goblet of Fire has been a worldwide hit too, making $181.4m (£105.3m).
Early figures suggest $101.4m (£60m) of those tickets have been snapped up in the US, which would make it the fourth biggest ever opening there.
GOF UK ticket sales
Friday - £4.02m
Saturday - £5.64m
Sunday - £5.24m
Total - £14.9m
It's sold all those tickets despite having a having a slightly older rating than the others; 12a in the UK and PG-13 in the US.
The record for the first three days in cinemas in the US is held by Spider-Man which opened with $115 million in 2002.
Star Wars: Episode III: Revenge of the Sith began with $108.4 million in 2005, just ahead of Shrek 2 with $108 million in 2004.