Parbury is coming out of the water, just having been scuba diving, but he is not carrying any fins.
The painting to the left of Francesca's door changes between Parbury's arrival and his departure.
Joe accompanies Francesca from the cave in the final scuba diving scene. He enters the water and is seen swimming away dragging his air tanks after him. In the next shot, his tanks are now on his back.
In the Casino, the winning number at the Roulette table is "Red Number 5", but instead of paying the winning bets on that number, the croupier removes all the chips that have been placed as if it had lost.
The women have unnaturally dark skins with glaringly obvious tan lines, as if heavily made up. Priscilla's skin colour, in particular, is too dark for someone who has just flown in from the UK.