The Godfather actor, 84, has been sober for years, but said during his boozing days he once got so drunk he could not remember where he was staying and stupidly agreed to get a in car with a woman when she spotted him and offered to give him a lift.
He said in his newly released memoir Sonny Boy he got drunk while out for drinks with actor Gene Hackman's brother Richard Hackman after he had starred in The Godfather.
Pacino said he "got so drunk that I could not find my way home".
"A woman said to me 'I'll drive you home' and without a second thought, I got into her car with her," he said.
"As we drove, even in my daze, I could recognise that she was not taking me back to where I was staying.
"I said to her, 'what is going on here?'
"And she said straight out, 'I'm kidnapping you'."
Pacino said he was "well-known" at the time as he had already made 1972's The Godfather.
The Heat actor insisted the woman's behaviour wasn't just "some aggressive flirtation".
"I am from the South Bronx," he said.
"When I see some crazy person trying to do something to me, I know how to escape.
"I said, 'no, you're not - I'm getting out'.
"She said, 'no, no' and she kept driving."
Pacino opened the car door and threatened to jump out if she didn't stop.
"I was a little drunk but I was ready to leap from a moving car if I had to - this ain't happening to me, man," he said.
His threat worked and his female captor agreed to take him home.
Pacino also opened up in his book about why he steered clear of marriage.
He said he has "always shied away" from it, adding he likes his space.
"I guess I didn't see how it would help anything," he said.
"I just wanted to avoid what I thought, at the time, was the inevitable - an entrance to the pain train."
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