John Paul is said to have corrected his scripts according to the shoot of the movie. He has said in his memoirs that, he likes to keep the script as seen in the movie and he started doing it after he was called by institutes to give speeches about script-writing. what i have felt is, the dialogues, maybe 80% of it, might turn out to be how it was written from the beginning. but the description of scenes might vary from writers. Blessy had once said, he was impressed by Padamarajan's detailing process in his scripts. He cited two examples. One is the Thangal character from 'Thoovanathumbikal'. In the script, Padamarajan had mentioned about how the character folds his sleeved upto the elbow, places a handkerchief folded in the sleeves of one hand and money folded in the other. Another example is from 'Nombarathipoovu'. The script had a detailed description of the room occupied by the lead character, Padmini (Madhavi), to the extent of what would be the things lying inside the waste-basket of a 30 year-old mother, separated from her husband and living alone in a hostel after the death of her two sons in a freak road accident. so, ghostwriters might be given the dialogue sheets and cue sheets and the description, as to how it appeared in the final product, might be for them to explain.