Most of that weekend was spent knocking off any other loose plaster and 'PVA'ing the walls and ceiling. (This is done with a watered down PVA glue which plasterers use so that the actual plaster sticks to the wall, mainly where they are plastering over already plastered/painted walls).
Then, one day later than planned Andy my plasterer turned up and made a start.
Unfortunately i didnt get a photo of the completely finished plastered room, but it took Andy two and a half days.