TOKYO: Japan's plans to change its pacifist constitution could rekindle historical animosities in Asia and lead to another war in the region, an Oscar-nominated director warns in a new documentary. 

"Japan's Peace Constitution'' is a reminder of the mistrust that still runs deep in much of Asia over Tokyo's militaristic past, and the potential backlash against any resurgence of that militarism, American director John Junkerman said at a weekend screening in Tokyo.