When Andy is dancing with Francesca for the first time at the outdoor bar/restaurant, her sunglasses at one point are almost completely falling off the back of her head; when the shot moves to close up, they are back on the top of her head.
When Harry chases Andy, he distinctly presses the center of the steering wheel to honk his horn. But he's driving a Land Rover Discovery Series II, which uses 2 horn buttons on the spokes of the wheel; the center is the airbag, and pressing it has no effect.
The goof items below may give away important plot points.
Abraxas presumably committed suicide by shooting himself on his right temple since the gun is in his right hand and we only see blood on right side of his head. The bullet hole on the wooden chair should therefore be on the other side of his head.