Viel lauter kann ich nicht schreien

Set against images of demonstrations, shootouts and natural disasters, the film's subtitles unfold a captivating micro-essay on the subjective truthfulness of our visual and aural sensations that goes on to consider the "truthfulness" of media information only to return to the question of the voice as a part of human identity.
"If I close the right eye, the image has a red hue; if I close the left eye, a green hue." What is the message of the colour code in which the Greek flags change their hues? (Ji.hlava International Documentary Film Festival)