Those born by dint of artificial insemination might well wonder at one point or another in their lives who their father was. But one doubts whether they would search as far-afield and diligently as the group of young Americans do in Jerry Rothwell's eye-opening documentary.
Finding siblings all over the place, one young girl gathers them all together and sends them off to find the father, who turns out to be an old hippie living in a camper van on a parking lot in Venice Beach, California.
He was a regular and thankfully healthy donor for years, in and out of the clinic, which makes a lot of money keeping the records curious people might one day want to buy. And he seems a bit dotty but rather nice, embracing them all but not letting them get too close. Only in America, you're bound to say after watching Donor Unknown, but it's worth a look all the same.
Donor Unknown
Cert: 12A
