The main character in Dzien Swira says about the taste of some food "It's like a meatball made from a dog. Minced together with its box". The same line is in "Psy", said by Olo. Both characters are played by the same actor (Marek Kondrat).
There are many similarities between these two films. In both of the films, the main character, Adam, hates his life and is afraid of cancer. The woman which a main character dreams of, is played by the same actress. There is also a scene with a barking dog in an elevator.