But Capt Schettino told Italian TV that the rock was not marked on his nautical chart.

BBC: Costa Concordia: Two more bodies found in Italian ship

He has denied any wrongdoing, saying the rocks his ship hit were not marked on his nautical chart.

BBC: Costa Concordia cruise ship captain 'went off course'

In this week's box office chart, Cameron's nautical disaster-romance relegated dystopian drama The Hunger Games into second spot, while Mirror Mirror was a new entry at three.

BBC: Titanic 3D crowns UK box office chart

Virgil Zetterlind, cofounder of nautical-charts provider EarthNC, says iPads make smart replacements for traditional marine chart plotters because they are multipurpose, power efficient, simple to use, readable in direct sunlight and easily updatable.

FORBES