Though set in England, Mark and Tony both wear American ties, recognizable by the diagonal stripes slanting down toward the right. English ties always slant to the left.
The cricket match (c.18 minutes) shows the spectators on the boundary only a few yards away from the players. A cricket pitch is roughly circular with a diameter of some 120 yards, even for a village cricket match.
The bidding in the bridge game (c.37 minutes) proceeds in an anti-clockwise direction instead of clockwise.