Piotrek arrives at a building where different courses take place. Basia, his fiancée, enrolled him in the smoking cessation training. Due to an accidental turn of events, he ends up on a mysterious self-development training.
Unfortunately the movie Leader is not yet available on Disney Plus.
| Directing | Katia Priwieziencew | Director |
| Production | Daniel Markowicz | Co-Producer |
| Art | Rafał Oryga | Assistant Set Designer |
| Art | Agnieszka Bąk | Set Designer |
| Production | Ewa Krzyżanowska-Łepecka | Casting Director |
| Writing | Igor Priwieziencew | Writer |
| Costume & Make-Up | Piotr Kałuża | Costume Design |
| Art | Krzysztof Wróbel | Assistant Set Designer |
| Writing | Katia Priwieziencew | Writer |
| Directing | Paweł Konofalski | Assistant Director |
| Directing | Igor Priwieziencew | Director |
| Camera | Grzegorz Hartfiel | Director of Photography |
| Camera | Łukasz Dryżałowski | Director of Photography |
| Art | Konrad Dobrzyński | Assistant Set Designer |
| Sound | Jakub Jerszyński | Sound Editor |
| Costume & Make-Up | Piotr Kałuża | Makeup & Hair |
| Production | Ewa Krzyżanowska-Łepecka | Associate Producer |
| Sound | Jakub Jerszyński | Sound Designer |
| Sound | Oleg Kostrow | Original Music Composer |
| Editing | Jakub Nowak | Editor |
| Sound | Stanisław Najmiec | Sound Effects |
| Production | Piotr Galon | Co-Producer |
| Camera | Wojciech Motylewski | Still Photographer |
| Visual Effects | Mariusz Dąbrowski | VFX Artist |
| Production | Igor Priwieziencew | Associate Producer |
| Production | Lila Truskolaska | Production Manager |
| Camera | Paweł Hejbudzki | Still Photographer |
| Production | Ewa Szulgacz | Post Production Coordinator |
| Production | Katia Priwieziencew | Producer |
| Production | Marek Kurpiewski | Co-Producer |
| Production | Jakub Jerszyński | Co-Producer |
