The full story of the bridge shoot is told in Herbie Knott's book 'How they Made Piece of Cake' - excellent, worth searching out, and (incidentally) Aerohack contributed to the book- didn't you, A?
IIRC, the bridge was in Ireland. The idiot director used a close wide angle lens which made the achievement seem the less, rather than a long lens which woul've tightened it together... Classic error.
Cheers
James K