a co-production between Swedish Television (in association with WGBH Boston) and ZDF/Arte and Channel Four (in association with RA1 3, NPS, NRK, TV2 Denmark and YLE 1) ; photography, Lennart Nilsson ; directors and producers, Mikael Agaton, Thomas Friedman, Lars Rengfelt ; written by Thomas Friedman ; executive producers Paula S. Apsell and Bo G. Erikson
a NOVA Production by Lone Wolf Pictures for WGBH/Boston ; directed by Kirk Wolfinger ; written and produced by Rushmore DeNooyer, Geoffrey Little & David Espar