Many come to mind.
4-D Man (1959), starring the great Robert Lansing. This actually used a concept from physics, that molecules in solid objects are relatively distant from each other. But if you vibrated one solid object at just the right speed, another solid object could pass through it. Lansing does this, but then achieves the ability to do it without help, but at a dreadful cost.
Idaho Transfer (1973), directed by Peter Fonda. “It is a cross between an idiotic mess and a brilliant masterpiece.”
A Boy and His Dog (1975), starring a young Don Johnson. Based on a post-apocalyptic novel by Harlan Ellison. Not what anyone would expect.
so many more...