In reply to M. Edwards: Thanks Mark for that additional information, it is excellent to see your dad and Eric climbing, and recreating the first ascent for the film, climbing in the style this was achieved in. those climbers your dad and Eric included back in the day are Bold as, long runouts, on questionable gear.
it is good to see how climbing and climbing equipment has changed.
there are some more good films on the youtube page i got the Left wall vid from. nice Climbing on Gillan, no pebbles needed on that one.