Available on DVD
This is available from ebay with english subtitles
http://www.ebay.com/itm/BOBULE-Grapes-DVD-2008-Czech-romantic-comedy-English-subtitles-Krystof-Hadek-/141241904005?hash=item20e2ac6b85
and I found one other website here
http://czechmovie.com/d/bobule-grapes-dvd-1000174/