Screenwriter Gian Paolo Callegari
The screenwriter Gian Paolo Callegari seeks perfection in all his works and this creates an explosive combination when joining directors like Mario Costa, Umberto Lenzi who seek the same.
A screenwriter like Gian Paolo Callegari does very well in the following genres Action, Adventure. Without a doubt, his great gifts as a screenwriter make us get involved in the films he writes.