My English's not perfect, so I'll do my best.

When Jennifer Lopez and agent Novak are inside Stargher´s mind after Novak getting his guts off his body, they're in a place with the swimming lady in a cube, there Jennifer talks with the kid and then hugs him, (here it goes) she touches with her RIGHT hand the kid's bloody hole in his back, and when she feels it, the camera takes her LEFT bloody hand, being that this hand never touched the blood.