'Horton' retains US box office top spot

The animated Dr Seuss adaptation Horton Hears A Who! has topped the US box office for the second week running.

The top ten featured four new entries, with Tyler Perry's Meet the Browns, Shutter, Drillbit Taylor and Under the Same Moon all entering the chart.

Last week's number two 10,000 B.C. slipped down to fifth place while Will Ferrell's Semi-Pro fell out of the top ten with a 62% drop in ticket sales.

The top ten in full are:

1. (1) Horton Hears a Who! - $24,600,000
2. (-) Tyler Perry's Meet the Browns - $20,100,000
3. (-) Shutter - $10,450,000
4. (-) Drillbit Taylor - $10,310,000
5. (2) 10,000 B.C. - $8,934,100
6. (3) Never Back Down - $4,830,000
7. (4) College Road Trip - $4,700,000
8. (6) The Bank Job - $4,120,000
9. (5) Vantage Point - $3,806,000
10. (-) Under the Same Moon - $2,770,000