Long Live the Fighter!
Andrew Saladino made an amazing three-part documentary on the life of UPA. Part 1 explores the seeds that led to the company's foundation and the hardships they had to deal with. Part 2 shows the many ways UPA was so different and experimental from every other studio at the time, and the different contributions each animator brought to their films. Finally, part 3 shows how a changing political landscape and the emergence of television left UPA creatively bankrupt, essentially strangling them to their dying breath, although their legacy and influence would be felt decades after they'd shuttered.