According to
David Hemmings' autobiography,
Blow Up and Other Exaggerations, he was first choice for the role of Uncle Henry but
Ken Russell had to renege on the offer because the US film distributors did not want him. Bizarrely, Ken then cast
Elton John in the role, before the singer got cold feet over wigs, costume and arduous acting lessons and asked to leave the project. The next choice was
Alan Bates (who had played Birkin in the sequel,
Women in Love (1969)) but he declined and the role went back to Hemmings.
more