Continuity: When the woman is covered in Lorna's blood, the thickness (amount) of blood on her face changes from shot to shot.

Continuity: When Miroslav is massaging Whitney in the hot springs, the amount of body scrub cream on them drastically changes during shots.

Continuity: After all the rich people bid on the girls, they cut to an American talking on the phone to someone. A school bus pulls up outside and his kids get up from the table with their school things and head for the bus. A few moments later the bus pulls away, yet you never see the kids get on the bus. The door to the bus is in plain sight at all times and when the bus pulls away you see no other door that they could have used. Submitted by SAZOO1975

Revealing: During the bidding, the girls' pictures on the phone are obviously super imposed images and not really the picture phone screens. Submitted by William Bergquist

Continuity: When Beth is first captured, the gun held by the business man is a single-stack .45 ACP 1911 pistol (evidenced by the magazine at the bottom of the weapon). A few seconds later, when the children are lined up, the gun becomes a Beretta with a standard barrel. A few seconds later, when the silencer is attached, the gun magically has an extended threaded barrel (to allow attachment of the silencer). The silencer that was used obviously screwed on, which would not attach to a standard factory barrel.

Revealing: Towards the end of the film when the rich American is set upon by the dogs in the lift, the background of the lift is green fabric. When the doors reopen, the metallic background is now visible. Submitted by Andrew Cairns