I need the name of an early sci-fi movie, 1950s or early 1960s. I'd call it a C-movie. It was a Mars landing, in a spaceship that looked basically like a coffee can. The seats in the ship were low-backed regular chairs. The elevator taking the crew to the surface was the slowest elevator ever seen. On the surface, they discovered a Mars monster which looked like a giant tin-foil ball spray-painted with lighting effects to make it spooky. I think there were only about 4 crew members. It was a wonderfully awful movie, lots of fun. I'd like to see it again and share it with friends.
A slightly better match, Mission Mars, a 1968 film.
Three American astronauts who land on Mars discover the body of a frozen Russian cosmonaut and a mysterious talking orb.
The "coffee can" ship is available around the two minute mark of the video above. Low-backed chair at 2:26. The tin-foil ball creature shows up around the 7 minute mark.
Possibly the 1951 Flight to Mars. Looking at clips on the web, it's definitely low budget, and has the low-backed chairs. I haven't found a monster yet, but there are four crew members, wearing what look like garishly colored flightsuits.