Both the US space agency and the Chinese space agency have these troubling issues with their "space" footage: bubbles are seen escaping from the suits! This is evidence that the footage is being taken underwater, rather than in space. In fact, in one of the US space agency's "space walk" videos, a person wearing scuba equipment can be see hiding out in the hatch!
NASA lies. Once you know you're dealing with a liar, everything else they say is suspect.