The Serbian model dated Pacino during the making of The Godfather in 1972 when he was playing mobster Michael Corleone in the Francis Ford Coppolla film and aged in his early 30s.
"He was always so tense and paranoid," the Daily Mail quoted Becirovic as telling a Serbian newspaper.
"I always thought my role was to make a man feel like a man and his role should be to make me feel like a woman. But I never felt that way with Al. It was boring," she added.
The former Playboy model revealed how the Oscar winning actor used to give her.