Robinson Crusoe On Mars (1964)

 I love this movie. Lots of 1960s futurism, UFOs, "aliens", and old-style FX.

THIS particular version of this poster showed up on the Internet around 2012.
I had been waiting since 2004 for it. The level of detail is very nice here.
Note seal of scientific authenticity!

Here is what we see for weaponry on the poster:

BUT THIS is what we see in the movie.
SOMEONE HAS SOME EXPLAINING TO DO!!!!

(below) Looks like an unused scene