At Amazon.com you can buy the 2DVD-set "Echo, and other elephants" from the BBC-series "Echo of the Elephants", and 5 other films. It includes:
Echo of the Elephants
Echo of the Elephants, the next generation
Echo of the Elephants, the final chapter?
Elephant nomads of the Namib Desert
Living with elephants
Namibia's desert giants
The search for Virgo
Elephants of Samburu.
362 minutes of African elephants!
I love the "Echo" trilogy. Great camerawork (Martyn Colbeck), great field science (Cynthia Moss) and great narration (David Attenborough). "Elephant Nomads of the Namib Desert" is a more recent film, again shot by Martyn Colbeck. The other 4 programmes are notably less glossy but Saba Douglas-Hamilton is easy on the eye
I believe there's a similar DVD available in Australia. It has the 3 Echo films and a fourth Cynthia Moss programme, "Africa's Forgotten Elephants". Can never have too many eles!