Jim Carrey voices the rubbery elephant lead character
Animated film Dr Seuss' Horton Hears A Who! has entered the UK and Ireland box office chart at number one with takings close to £3m.
The movie, which features the voice of Jim Carrey, saw off fellow debutant The Spiderwick Chronicles, which was at two with ticket sales of £2.5m.
Step Up 2 The Streets and Meet The Spartans were also new hits in the top five over the Easter holiday weekend.
Last week's chart-topper 10,000 BC slumped to fifth place.
Thriller Vantage Point suffered a similar decline, falling from second to sixth place.
UK BOX OFFICE TOP FIVE
1 Horton Hears A Who! - £2.94m
2 The Spiderwick Chronicles - £2.55m
3 Step Up 2 The Streets - £2.35m
4 Meet The Spartans - £1.14m
5 10,000 BC - £1.03m
Source: Screen International
Other new entries were Race at nine, and Spanish-Mexican production The Orphanage, which rounded out the box office chart at 10.
Horton Hears A Who!, which features an elephant as its main character, is also top of the North American box office for a second week.
It retained its top spot despite a slew of new releases for the Easter weekend in the US and Canada.
In the Dr Seuss movie, Carrey provides the voice of a caring elephant who tries to protect the microscopic city of Whoville, which is based on a speck of dust.
Steve Carell, who stars in the US version of The Office, provides the voice of the mayor of Whoville.