Phineas & Ferb Across the 2nd Dimension: Mix & Match is an upcoming book set to be released on June 28, 2011. It is based on the film Phineas and Ferb The Movie: Across the 2nd Dimension.
Description from Amazon.com
Disney Channel Original Movie Description:
When Phineas and Ferb accidentally help the evil Dr. Doofenshmirtz complete his latest creation that will finally take control of the Tri-State Area, they get zapped into a new dimension, where they meet their alternate selves! In this new dimension, Dr. Doofenshmirtz is the leader of the Tri-State Area, and even worse—summer vacation doesn't exist! Will Phineas and Ferb figure out a way to get back to Danville, or will they be stuck in this alternate dimension forever?
Phineas and Ferb fans will love this cool format based on the sure-to-be hit Phineas and Ferb Disney Channel Original Movie: Across the Second Dimension! By flipping the sturdy die-cut pages, kids will be able to interchange elements of Phineas, Ferb, and the rest of their favorite characters, who have entered an alternate dimension! With over two hundred different character combinations to be made, this book will provide hours of phun!