When Jack is swimming under water into the wreck, his shorts slide down, partially exposing his bottom.

Kuleczka (Agnieszka Nagórzycka, 11) visits Kundel (Piotr Jagielski, 11) one evening and invites him to her house. They go into the bathroom together where Kundel takes a bath (with his underwear still on) while Kuleczka lights some candles. The romantic moment is cut off short when the girl's older sister comes home unexpectedly and starts knocking on the bathroom door. The boy quickly jumps out from bathtub and escapes through an open window, while Kuleczka undresses and takes his place in the tub before her sister walks in. Brief full nudity of the girl Agnieszka, partial butt exposure of Piotr, the boy.

Viktor Koval' (9) bottom is accidentially exposed when he takes off his pants.

Marcel (Yaniss Lespert, 13) is waking up with no clothes in his bed, he covers himself up with his sheets and as he is about to leave, you can get a quick glimpt of his butt.

Erik's (Jasper Oldenhof, 10) clothes fall from him as he shrinks to insect's size.

Felix (Titus Novotny, 13) seen rear nude in locker room.

Christian Slater (17) is pretty creepy as an evil youngster who begins terrorising his babysitter. In one scene he is taunting her with a kitten. She grabs for it, but he spins and she pulls his trousers down instead. We see his rear for a couple of seconds, as he stands up and does his trousers back up.

After being head butted off a fence, a boy's pants are torn and another kid pulls back the tear in his shorts to reveal his butt and a scratch.

As they get out of bed, we see [one frame only] that one of Robert's sons has nothing on under his night shirt.

The boy (Petr Říčánek, 11) is seen rear and frontal nude quite often throughout the movie.