Luciano Vincenzoniwas an Italian screenwriter, known as the "script doctor". He wrote for some 65 films between 1954 and 2000... (wikipedia)
Do you know how long it took me to write 'For a Few Dollars More'? Nine days.
Do you imagine Sergio Leone with a philosophy? Come on! He was a primitive of movies, a great director on set.
I have written movies that won prizes at Cannes and Venice.
To be a director, you have to be especially patient.