Vratné lahvé is such a wonderful movie by Jan Sverák who also directed the beautiful "Kolja" and "Dark blue world". His father, Zdenek Sverák, plays the main character in this movie as well as in "Kolja". And he also wrote this film while his son directed it. That's what I call father and son team work.
I don't know if it's better when you understand Czech, like I do, but I think it's wonderful. I even wen't to see it twice at the cinema. It's a comedy, but a comedy with a sad undertone. Everyone is looking for love, but in the wrong places.