Spencer Trashing Heidi in Tell-All Book

Spencer Pratt will take a break from filming his upcoming movie, the insanely titled TOWER 69: BEACH PATROL featuring 3D BOOBS, to pen a tell-all book about future ex-wife, Heidi Montag.

The wannabe author tells Us Weekly:

My last book, How to be Famous, didn’t make the New York Times best-seller list because it was in the self-help section… This one is going to be totally different. I’m not holding anything back.

Pratt said he plans to reveal dirty details about his single year of marriage to Montag, and her tumultuous relationship with her mom. Heidi told TMZ she’s trying to block the book, saying: “This is exactly why I left him.”

The Montag-Pratt divorce is expected to become final on the most romantic day of the year – Valentine’s Day 2011.

Will you read Spencer’s tell-all book about marriage to Heidi? Give us a holler in the comments.

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