Starts off interestingly - the son of Martin Sheen, growing up in Malibu, hanging out with the Penns (Chris more than Sean), being on set in Philippines for Apocalypse Now, discovering paid sex on the streets of Santa Monica (!), a rapid rise to acting work - a part in Grizzly 2 (which meant he had to turn down the lead in Karate Kid), a strong experience on Red Dawn and Ferris Bueller then the casting in Platoon. After that the book wobbles with Sheen whining incessantly about his work on Wall Street then it goes into free fall with tales of drugs, and women, and rants. Sheen comes across as a completely unpleasant person - a narcissist like so many junkies who brags about all the drugs they took and interventions they've had and wagons they've fallen of, who dribbles away about his suffering. He clearly lives in a world with too many jesters and has little respect for his craft of acting. He's constantly disparaging the films he appears in - ego trips, badly written, etc - though he has some nice words for the writers and co stars of Spin City and Two and a Half Men. He owns some of his mistakes but only some and basically just dribbles.
Despite the people he's worked with some character sketches come through - Johnny Depp trying to seduce him into smoking on Platoon, Oliver Stone's tension trying to make the movies, Chris Penn, his parents. But so many people are vaguely drawn incuding his own brother. The book also assumes the reader knows about many of the incidents - maybe that's true for a typical reader but some context wouldn't go astray. Also the spelling of "dood" and "fukken" gets wearying. Like Sheen and this book.