I finally found it on dvd!

I found this title with english subtitles available from http://www.amazon.com/Zitra-vstanu-oparim-Tomorrow-Myself/dp/B0039WVSFM/ref=sr_1_1?ie=UTF8&qid=1441970225&sr=8-1&keywords=zitra+vstanu

this dvd is also available from czechmovie.com
There is one benefit now – one that can save you a chunk of cash. At the
czechmovie.com, you can buy any film at a 15% discount with the discount code FREE15!