The San Franciso B747 was one of British airways own vids (but i don't know where the original footage came from).
As for others - we use a lot of BBC education vids - try them on:
+44 (0)208 576 2541,
or 576 2415
or 576 2521.
Fax +44 (0)208 576 2916
WWW.bbc.co.uk may lead somewhere (but the web site is dreadful!)
address:
BBC Videos fro Education and Training
Woodlands
80 Wood Lane
London
W1 0TT