Unless it is Bluray, otherwise, there will be no subtittle.
For cantonese version, the answer should be yes. Gainax usually releases cantonese version for its movie animation but it must be normal version only, just like Gunbuster. For fans, the JPN limited box is a definite collectible item.
I have bought the part 1 DVD box set and Ischiban GL for 紅蓮篇
I am now waiting for this part 2 DVD box set and Volks limited 1/∞ scale Statue 天元突破グレンラガン to complete my movie collection.