Unfortunately, the clip in question does not seem to be available on YouTube, so I haven't been able to post it, but I remember the scene in the TV series Auf Wiedersehen, Pet (Series III - A Bridge Too Far, Episode 5) where Oz (Jimmy Nail) has to walk along a girder at mind-numbing heights to do some negotiating.
Obviously staged for the cameras, but still not easy to watch for anyone, like me, who suffers from vertigo!