What's a firework, anyway? A paper tube filled with something that can blow up.
In the hands of Kenneth Anger, of course, it's something much more complicated and homoerotic. "In 'Fireworks,'" Anger says in the prologue, "I released all the pyrotechnics of a dream." And amazing, especially when you consider that this was made in 1947.
Not for the easily offended. Credit goes to UCLA for its 2006 restoration and to my friend Jerry Lentz, for pointing me toward it.