When Kelly climbs back onto the "stone" pillar balcony at the party, the noise his foot makes when it collides with it gives away the fact that it's clearly a much lighter material.
When Kelly is being driven "outside" by a man standing too close to him at a party, the image jolts slightly, as if the camera wobbled during the tracking shot.
There are sweat patches under Kelly's arms during his opening monologue.
During the filmed scenes where Kelly is leading a series of cars in the wrong direction, a number of the shots are very obviously speeded up. However, as this is a comedy programme, it may have been a deliberate choice to add to the humour.