Complex sentence: Published in 1936 and extremely popular, it was the basis for a 1939 John Ford movie starring Henry Fonda, Edna May Oliver and Claudette Colbert.
Split into simpler sentences: Published in 1936 and extremely popular, it was made into a film in 1939. It was the basis for the 1939 John Ford film starring Henry Fonda, Edna May Oliver and Claudette Colbert.