Sergio Donati (born 13 April 1933) is an Italian screenwriter.
He has written for more than 70 films since 1952.
He was born in Rome, Italy.
He started as a writer and had some of his books optioned for film.
He is well known for his collaboration with Italian director Sergio Leone, who encouraged him to take up screenwriting as a full-time career, and with Italian producer Dino de Laurentis.
What is film? In the first act, you hang a man up in a tree.