Continuity mistake: Chris is standing near the middle of the edges of the high boulder, and there is a knee-high mound near his right leg. In a distant front view, Chris stands with his right foot at the edge. The small mound, which blocks the view of his lower right leg, is no longer there. (00:04:58 - 00:05:40)
Continuity mistake: Ilya is standing across from and about midway between Chris and Alicia. He spears the shovel into the ground, but it unintentionally falls over to his right (mostly off-screen). The next view of the shovel shows it has fallen to Ilya's left. (The entire shovel is to the right of Chris, which would be too far regardless of which direction the shovel's handle fell.) In the next view, the shovel's blade is opposite Chris' left foot and later the angle is different. (00:36:30)