What movie is this? Sci-fi movie about a planet where gravity is heavier than it is on earth,...?

Question

...so people have trouble standing upright. Probably from the 1970s. I think the title begins with a "P".

Answer 1

I think it should be the weight of the world from 1994 about gavitational changes on the earth. although while looking for this I found a plot summary for the guy is falling which sounds completely bad. Check out the summary at least!