The first time we see Valeria's 'Enchant' banner, her head is covering the 'C', but the next time that the banner is shown, her head is not covering the 'C' at all, then, the last time that we see the banner, the 'C' is completely covered by her head again.
When Daniel is sitting in his office and phones his wife Julieta before hanging up with out saying anything, his cigarette is down to the butt and close to his fingers before his dials the number, but after he has hung up the cigarette seems to have grown a few inches.
During the car crash, stabilizing bars, to further strengthen the roof and protect the stunt driver, are visible in the black car. These bars are on both the driver's and passenger's side and run diagonally from the roof to, presumably the floor, as in a race car. The bars are not visible prior to the accident or after the accident, This particular vehicle was almost certainly just used for that one scene/shot.