O Samba
In the Documentary The singer, composer, writer and bamba Martinho da Vila guides the viewer through the gigantic world of samba investigating the origins of the rhythm, highlighting its importance in different spheres, telling stories about his career and presenting his heart association, Grêmio Recreativo Samba School Unidos de Vila Isabel.
Watch "O Samba" on Amazon released in 2015. It's a musical and music movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.