Other mistake: At the billiard place in Bogota, just after Javier gives some money to Maria, pay attention to a couple of her shots: there is a horizontal line of dirt on the lens, that runs across the screen.
Continuity mistake: After the dealers give the money to Maria and her friend Blanca, she is sitting with the old man (Don Fernando) on the table. She is holding it in her right hand, then takes out a wallet from her black bag. In the next shot she's still holding the money, and takes the wallet out again, but now puts the money inside. (01:32:45)
Continuity mistake: When Maria is climbing the house at the beginning, the shadows behind Juan change radically between the shots, although he stands in the same place.