You wound me with your blasphemy. No respect for your local deity.
It´s partially the unfamiliar, guttural sounds and partially that when they do hear Russian or German it´s usually spoken by bad guys in movies. I can´t even remember the last movie where the people speaking Russian or German where not in some way supposed to be intimidating. It wouldn´t surprise me though if they do it intentionally to ensure that foreign movies still feel foreign to English speaking audiences, so that less people watch them. Less competition that way.