Since the news broke that a movie featuring 200 Super Sentai facing off against 40 Kamen Riders would be made, the tentative title for the movie was "Super Hero Taisen" (also rumored to be called Kamen Rider X Super Sentai Cross Generation). Now, via JEFusion and the Viva City Cinema site, it's now been confirmed the the official title for the movie is "All Kamen Riders Vs All Super Sentai"! All Rider vs Daishocker and Let's Go Kamen Rider director Kaneda Osamu returns to helm, and the movie features the return of Masahiro Inoue as Kamen Rider Decade, as well as Kamen Rider Den-O's Momotaros, Naomi, and Owner, not to mention Ryota Ozawa as Gokai Red! For more info on the story, visit the source posts at JEFusion and Viva City Cinema!
All Kamen Riders Vs All Super Sentai is slated for a May 2012 release!