Kelly Manjak recommends this Canadian documentary.
… by director Paul Cowan is about four athletes and a team that competed in the 1976 Olympics. They had trained courageously to be among those who would mount the podium to receive a medal. None of them did, but was it worth the effort?
I’ll Go Again answers the question.
You can watch it for free on the National Film Board site. Or click PLAY. (41min)
http://media1.nfb.ca/medias/flash/ONFflvplayer-gama.swf
It features gymnast Phillippe Delasalle.

That was the Olympics where the East Germans were rumoured to have a drug boat off-shore.
… East German swimmers won 11 of 13 events, journalists started asking questions about the broad shoulders and deep voices …
Athletes were tested for Drugs as early as 1968. A few even tested positive in 1976, mostly Weight Lifters.
