Two years before Star Wars, here's a wanted poster for a Wookie-like monster.  From UFO Newsclipping Service, 1975.

This hungry cheese is a precursor to Pacman.  From Nebelspalter, 1935.

A yin-yang crater on the moon, from Montclair's 1969 yearbook.  (Surely this predates photography of Saturn's moon Iapetus, which also has a yin-yang crater.)  

Here's a precursor to the Killer Rabbit of Caerbannog in Monty Python and the Holy Grail.  From Nebelspalter, 1937.

Before the invention of the cell phone, people had to watch very tiny movies on other devices.  From Taylor's 1975 yearbook.

Before the invention of the cell phone, people had to isolate themselves in different ways.  From Kent State's 1982 yearbook.

Before cell phones, people had to isolate themselves in different ways.  From Santa Clara's 1979 yearbook.

Over three decades before the "flower children" and "flower power" political movement, there were these flower people.  From Nebelspalter, 1932.

Jonathan points out an old pattern for flower-themed beachwear.

Before android "replicants" were opening fire, there were "replicas."  From Startling Stories, 1951.

Ten years before the Pac-Man arcade game was developed, here's one of the ghosts.  From Morris Harvey's 1969 yearbook.

Before the rivals of Madonna,* there was The Rivals of Madonna. 

*Lady Gaga, Britney Spears, Kylie Minogue, Cyndi Lauper, Janet Jackson, Belinda Carlisle, and Whitney Houston are the most-often cited rivals of Madonna.

Here's a precursor to Obi Wan deactivating the tractor beam on the Death Star to help Princess Leia escape (nearly a quarter century before Star Wars debuted).  From Super Science Stories, 1951.

Here's a precursor to robot priests, like this one who runs a 400-year-old Buddhist temple in Kyoto, Japan, and this one in Germany that bestows blessings in five languages.

From La Colotte, 1908.

Here's a precursor to overlaying album covers and photos onto other scenes.  From La Colotte, 1907.

Did Billy Idol foresee Uber Eats 31 years in advance of its debut?  Of course he did!  In the bridge of 1983's "Rebel Yell," Idol sings:

The invention of the insta-print camera (with self-developing film) is credited to Edwin Land in 1948.  But you knew we'd find a precursor, and here's one from 1932.  From Nebelspalter, 1932.

No one needs to be told that this is a precursor to the crew of the Falcon at the Mos Eisley Cantina in Star Wars.  From Planet Stories, Fall 1943.

"You're not the first one to develop a bug powder problem" (the film adaptation of William S. Burroughs' Naked Lunch).  From Nebelspalter, 1933.

Here's a precursor to one of Penn and Teller's elaborate "Is this your card?" revelations.  From Nebelspalter, 1930.