Robbie then read out a joke referencing Prince Harry and Meghan Markle’s decision to relinquish their duties as senior members of the royal family.
However, he was unable to fly over due to “family obligations”, which left Robbie with the task of reading out a speech that referenced Brexit and Prince Harry.
Her joke drew laughs from the Duke and Duchess of Cambridge, who were sat in the front row.
His co-star Margot Robbie graced the stage instead, reading from a piece of paper: “Hey Britain!