available on DVD
I found this title with english subtitles available from http://www.ebay.com/itm/Smrt-si-rika-Engelchen-Because-We-Dont-Forget-DVD-box-English-subtitles-/131770009973?hash=item1eae1ac975:g:w0oAAOSwZ8ZXAEdO
this dvd is also available from eshop with Czech films http://czechmovie.com/d/smrt-si-rika-engelchen-because-we-don-t-forget-dvd-1001257/