You've Never Seen Graffiti Like This Before

French artist Guillaume Legros, known as Saype, paints enormous biodegradable murals of interlinked hands across countries including Switzerland, Canada, and Burkina Faso to trace the stories of migrants. The film spends real time on how he mixes and sprays paint at that scale, not just on the finished images.

Why it's free: Free on Great Big Story's own channel; GBS produced and posted it there itself.