At Kuba's wedding an unknown woman comes up to him and accuses him of cheating on her. This causes Kuba's soon-to-be wife, Majka, to leave him. It turns out that the woman, Lola, confused Kuba with his boyfriend, famous guitarist Johnny, so Kuba embarks on a journey to find him and prove his innocence.
Costume
The mod suits and miniskirts are a time capsule of Polish 60s cool.
Acting
Jerzy Turek playing both twins with just enough distinction to matter.

Director
Jerzy Passendorfer
Trivia, insights & behind the scenes
Big Beat was part of Poland's brief 'Polish School' flirtation with Western-style entertainment, using rock music to smuggle light comedy past censors who preferred socialist realism.
Director Jerzy Passendorfer mostly made war films; this musical comedy was such a departure that critics dismissed it as frivolous, making its cult rediscovery decades later even sweeter.