Editorial staff of Sneaker Bunko clarified through their official website that there was a mistake in previous reports regarding upcoming film sci-fi mystery anime series, Steins;Gate.

Instead of “Movie to premiere this fall” which was published last April 26 on  June issue of Shonen Ace and May 2 on Young Ace magazine, they corrected the line to “Steins;Gate the Movie Production Green-Lit” and made an apology afterwards.

[Source]