Considering the the amazing amount of animated DVD that are released in Japan each year, the 9th Pocket Monsters Movie placed 18th in total sales during 2007 with 4.3 million units sold.

Pokemon Ranger and the Prince of the Sea: Manaphy is the fourth and final Pocket Monsters Advanced Generation movie, and 9th of all Pokemon movies. The general theater screening of Pokemon Ranger and the Prince of the Sea: Manaphy ran for 6 weeks from July 15 to August 25, 2006. The DVD was released on December 22nd, 2006.

The top 6 Animated DVD's sold in Japan were all movies. Excluding Shrek which is a Dreamworks movie, the Walt Disney studio home entertainment (which includes Buena Vista home entertainment) sold most of the top releases in Japan. Cars, Leroy & Stitch were some of the North American based releases that sold well in Japan.

Source: http://business.nikkeibp.co.jp/