Original sentence: Another story is that the actors did not know until the last day of shooting how the film was to end.However, while rewrites did occur during filming, Aljean Harmetz's examination of the scripts has shown that many of the key scenes were shot after Bergman knew how the film would end; any confusion was, according to critic Roger Ebert, "emotional", not "factual"
Edited sentence: Another well-known story is that the actors did not know until the last day of shooting how the film was to end.However, while rewrites did occur during filming, Aljean Harmetz's examination of the scripts has shown that many of the key scenes were shot after Bergman knew how the film would end; any confusion was, in critic Roger Ebert's words, "emotional", not "factual"