Board Thread:Questions and Answers/@comment-24573865-20140827230729/@comment-26391060-20140906060417

DeamonLord wrote: The same for the 1st heaven's lost property movie for the most part but once again that was dubbed despite it mostly being a recap with some extra stuff thrown in for filler.

Because there are no official english sub available before so they decide to dub it. While in this case, it already being subbed and released officially&globally