Four White Shirts (Latvian: Četri balti krekli) or Breathe Deeply (Elpojiet dziļi) is a 1967 romantic drama film directed by Rolands Kalniņš.

[4][5][2] The film centers around a telephone repairman named Cēzars Kalniņš, who writes music for his friend's rock band “Optimisti” (The Optimists).

[8] Despite the film being informally banned for twenty years, many of the songs including “Dziesma par Napoleonu” started being played by Kalniņš’ band Menuets and became well-known hits.

[6] In 2014, music publisher ''Upe tt'' released Māris Čaklais' book ''Stikla saksofonists'' with two CDs.

The tracks include: The film's screening was restricted by Soviet authorities for nearly twenty years after its original premiere due to its controversial stance on censorship, not becoming widely shown until 1987.