Watch Losing Blue for Free: How to Stream the Movie Online at 123Movies. . What does it mean to lose a colour? Losing Blue is a cinematic poem about losing the otherworldly blues of ancient mountain lakes, now fading due to climate change. With stunning cinematography, this short doc immerses the viewer in the magnificence of these rare lakes, pulling us in to stand on their rocky shores, witness their power and understand what their loss would mean—both for ourselves and for the Earth.