On 13 April 2012, Paramount Pictures in Japan will release a digitally remastered DVD of "Prison on Fire (監獄風雲)" and "Prison on Fire II (監獄風雲II 逃犯)". Its retail price, JPY 1,500 each, is much lower than versions that have been previously available in the country. (It'll be even cheaper if you buy them from Amazon Japan.) The DVDs will feature the original Cantonese language with Japanese subtitles.
