Serkis was approached last year by the game's producer, Ninja Theory, and was asked to work with them on the game. After taking a look at Ninja Theory's concept art for the game and talking over the other elements like the story and the technology to be used for the game, Serkis was very interested in coming aboard but felt that there was one big problem -- performance. "They approached me, and I thought that there was a real gap between concept art and the look of it and the technology and actually the performance. Well, there is a real appetite out there for games now with performance," said Serkis in the article.
How would he solve this problem and help bring the game to a higher level of performance? By helping to script the game and directing the motion capture sessions. "We went back to New Zealand, and we rehearsed it, and then we shot all the motion capture. I directed all the performances for that game," said Serkis in the article. He also found time to voice several of the characters in the game as well as participate in front of the camera during the motion capture shoot by doing many of the motion capture movements for characters himself.
Heavenly Sword the video game should be coming out around the same time as the Playstaton 3. When Heavenly Sword the movie will be coming out is anyone's guess.