I doubt that these (Radagast, Bombadil, Goldberry and Glorfindel) are anything to do with the film. I would imagine that the photographs were taken specifically for the card Game.
I stand to be corrected, though, if anyone has any better information.
I do, however, share the hope that the Elf behind Elrond in the wedding scene of RotK was not Glorfindel, as I never imagined him as a camp Bulgarian weight-lifter.
