Bridges claims Plato - who died from a prescription drug overdose in 1999 - introduced him to drugs, which led to his long battle with cocaine and crystal meth addiction.
However, the actor - who has been sober for 17 years - insists he has taken responsibility for his actions. He writes in the prologue, "Seriously, I would not change a single thing about my life."
Explaining why he's writing the book, he adds, "I really wanted to tell what really happened... They always want to make me blame Hollywood. That's just not the truth. You know how they say Hollywood throws childhood stars away? That wasn't true in my case."