Knut Hamsuns books have been made to movies. Most are in Norwegian,

Hårda viljor 1923
Landstrykere 1990 (Imdb) Watch movie here
Markens grøde 1921
Mysterier 1978 (Imdb)
Pan 1922 (Imdb)
1937
1962
1995 (Imdb)
Siste kapittel 1961
Sult 1966 (Wiki Imdb) Watch movie here.
Telegrafisten 1993
Victoria 1935
1979
1988
par_oscarsson_1966_carlsen_sult

Par Oscarsson, Henning Carlsen “Sult” 1966.

Mysteries (1978) (Imdb)

Gåten Knut Hamsun 1996
Hamsun 1996
Istid 1974