A film has been made about the launch of one of the best-known Polish punk bands. The 2024 Polish feature film "Idź Pod Prąd" explores the early days of KSU and the punk scene of the late seventies.
The story takes place in Ustrzyki Dolne, southeastern Poland, where a few local youths - led by the charismatic Siczka - form a band under the influence of the Sex Pistols and Western punk. The boys first encounter punk by listening to Radio Free Europe broadcasts, and then write a letter to the station saying they want to hear more "music of free people" on the air.

The reading of the letter ultimately makes much bigger waves than they expect. The radio launches a regular punk show, while the attention of the Polish state security is also drawn to them. One of the central figures in the film is SB officer Jerzy Majak, who makes it clear to the youths that Ustrzyki Dolne is not London, and a local punk movement is not welcome.

Despite the pressure, Siczka and his companions found KSU, and begin to transplant the outward appearances and attitude of London punk into the reality of rural Poland. The mohawks, safety pins, chains, and razor blades soon cause a stir, and state security launches an operation codenamed "Żyletka" (Razor blade) to monitor the band.

The film focuses not only on the story of KSU, but also on how punk culture appeared in a small town in a socialist country, and what reactions it provoked from the authorities. "Idź Pod Prąd" is both a music film and a period piece about late socialist Poland, where punk emerged not only as a musical trend but also as a form of resistance against the system.

The 95-minute film premiered in Poland in September 2024.