Complex sentence: He started on a film career when Metro-Goldwyn-Mayer gave him part in the film "Possessed" and went on to appear in over 200 films including 13 directed by John Ford.
Split into simpler sentences: He started on a film career when Metro-Goldwyn-Mayer gave him part in the film "Possessed". Ford went on to appear in over 200 films including 13 directed by John Ford.