User blog comment:Mikenzb/Phineas and Ferb: Across the 2nd Dimension Release Date? (June 24, 2011)/@comment-1279469-20110516183545

It's not. June 24th instead is just another new episode of the show. Here is the link to prove it: http://tvlistings.zap2it.com/tv/phineas-and-ferb-bad-hair-day-phineas-and-ferbs-mega-awesome/EP009488470207

It could possibly air in August.

Besides that's when the games come out. It wouldn't be right to release them two months after the movie premiered.