Animation shows that Vavilov crash into Stalin while running in corridor -thats impossible, cause Stalin never walked alone without his bodyguards (even at his estate "Kuntsevo Dacha") - two armed guards always walk 10 meters ahead of Stalin, and two 20 meters behind him. While they walk - noboby can walk or even run in his presence - people should stand still against the wall with hands stretched to show they had no weapons (according to russian historian Radzinsky).