Update: There is now video taken by someone of just a few minutes of Depp's visit to the school.

It's not every day a Hollywood heart-throb pitches up in your classroom.

But these Greenwich schoolgoers left the rest of Britain's children - if not parents - green with envy when they had a surprise visit from Johnny Depp yesterday.

The star is currently in south-east London filming the fourth Pirates Of The Caribbean movie On Stranger Tides and arrived at the Meridian Primary School dressed in full character as Captain Jack Sparrow.

He made the one-off trip after nine-year-old pupil Beatrice Delap wrote to the star asking for help staging a 'mutiny' against the teachers, as he was filming at the nearby 18th century Old Naval College.