The summary (translated with Babelfish):
In 50 years just 1 time island "Hourai island" of the legend which appears. As for this island, spirit power resides from far former times, it was protected in "the kettle of rumble," it had the power which exceeds the flow of the time. As for there, at one time the ghost and the human lived together, prospered, it was the eternal paradise. But, it was the ghost of the world outside has an eye on this spirit power, to invade to that paradise, to exhaust the limit of destruction. At one time, with Kikyou, four fighting God which control the Hourai island (the dragon the misfortune the animal hardness) from, it tried you will take Inuyasha in the island and probably to rescue the children of the indigo semi- which is left, but the island the way goes out at the place of the rear one step.... 50 years later - - - that Hourai island appeared again in this world. End of the intense fighting, again Inuyasha which can push down the hardness one line, in order to rescue the children of the semi-, faces to the Hourai island. On the one hand, the time doing similarly, in the other side of the island the which has the form of the destruction of life circle.
Well it gives me an idea of the movie? XD
Some new images:
Poster:

More:





From the official site. ^^ Enjoy..