Czech actor-turned-director Ji?í Mádl has wrapped shooting on his third fiction feature, Waves, which centres on the turbulent period of the Warsaw Pact invasion, a seminal moment in modern Czechoslovak history. The period drama is inspired by real-life correspondents from the Czechoslovak Radio International Bureau during the late 1960s. The film, set against the tumultuous backdrop of the Prague Spring and the 1968 invasion, tells the story of two brothers navigating the challenges of the period. The protagonists are Tomá? and his younger sibling, who find themselves in the midst of the 1968 May Day Parade outside the Czech Radio building, where the film crew has been shooting some scenes. The foreign radio department was known for independent news reporting despite the prevalent censorship. However, the blossoming of the communist regime will soon be abruptly halted by the Warsaw Pact tanks.