It's rare that something original lasts for a long time in more or less the same way as it was first created. The Levi's 501 is certainly original and to celebrate its longevity and current iterations Levi's have created a documentary on the 501. It's not super long, the full documentary is eighteen minutes long. Broken up in to three parts that have a different focus each time: the journey from utilitarian garment to how we wear it today, how and when they were first worn for their style and finally the rebellious nature of those that wore them from Kerouac to Brando.
The film has a lot of great people giving their opinions on the jeans and what they meant to them which is interesting as the breadth of occupation and demographic gives varied answers. They include Henry Rollins, Scott Schuman, Mark McNairy, Greg Chapman and Josh Peskowitz. They also rather touchingly include the workers at the factory where the 501 has been made for years - Cone Mills in North Carolina.