A 1963 issue of The Magazine of Fantasy & Science-Fiction features a skeletal Jonas Mekas hovering over his dashing brother Adolfas Mekas piloting a spaceship.

Here are some fantastic underground film posters made in England in the ’70s, with posters promoting the work of Andy Warhol, Kurt Kren, Stan Brakhage and more.

Notable underground film events for 1973 were a widespread appreciation for Stan Brakhage developed; Alejandro Jodorowsky made The Holy Mountain and more.