Iron Man has topped the Irish box office chart for the second week.

The Marvel superhero adaptation held off competition from Kutcher V Diaz comedy What Happens in Vegas, which makes its debut at two.

Family adventure Speed Racer and futuristic thriller Doomsday are the week’s other new entries, landing at  six and seven espectively.

Elsewhere, ‘Sarah Marshall’ drops one spot from two to three, and card counting pic ‘21’ slips down from seven to nine.

The top ten movies in full:

(1) Iron Man  €338,000
(2) What Happens in Vegas €252,000
(3) Forgetting Sarah Marshall €157,000
(4) Nim’s Island €76,000
(5) Made of Honor €68,000
(6) Speed Racer €59,000
(7) Doomsday €38,000
(8) In Bruges €23,000
(9)  21 €14,000
(10) Underdog €12,000