Two little girls are playing with a ball. But after a petty quarrel, they get angry with each other and take offense. Their umbrage makes them inflate like balloons, they fly all the way up to the clouds. Girls get stuck up there, with no idea how to get down and save their kitten stuck in the tree.
Unfortunately the movie Don't Blow It Up is not yet available on HBO Max.
| Directing | Alžbeta Mačáková Mišejková | Director |
| Visual Effects | Alžbeta Mačáková Mišejková | Animation |
| Visual Effects | Matouš Svěrák | Animation |
| Art | Alžbeta Mačáková Mišejková | Art Direction |
| Visual Effects | Magdalena Kvasničková | Animation |
| Writing | Alžbeta Mačáková Mišejková | Screenplay |
| Visual Effects | Jacek Kaczmarek | Animation |
| Visual Effects | Nina Ovsova | Animation |
| Visual Effects | Petr Charvát | Animation |
| Visual Effects | Jan Bohuslav | Animation |
| Sound | Richard Vacula | Sound |
| Editing | Lucie Hecht | Editor |
| Production | Jiří Pecinovský | Producer |
| Writing | Alžbeta Mačáková Mišejková | Story |
| Sound | Magdaléna Mišejková | Original Music Composer |
| Editing | Alexander Kashcheev | Editor |
| Visual Effects | Žofie Zajíčková | Animation |
