Thanks to Moviemistakes.com for most of the bloopers
 

91. When Cindy first gets into the seaplane, she asks 'where are the LCD readouts - I learned in a Cessna?' as well as saying 'this plane is older than I am.' Any Cessna she learned to fly in would almost certainly be older than her, but even worse, Cessna’s used for initial flight training (150s, 152s or 172s) certainly do not have LCD displays.

92. When he is attacking the house near the end, a stuntman falls off the roof, unfortunately you can see a hint of blue crash mat as he lands.

93. When Cindy and Matrix are in the warehouse, Cindy instantly knows that 250 gallons would get the plane to the island and back. It would be unlikely that she knows the rate of fuel flow, and, indeed, the weather conditions and type of engine, to allow her to figure this out.

94. The scene with the shack has many mistakes, but only if you play it in slow-mo. First, he throws the circular saw at the guy in the window, the saw is moving on wires and he has a hairpiece someone just pulls off with a wire. The next guy he stabs with a pitchfork, and Arnie just lightly stabs him and the guy falls forward holding onto the pitchfork to make it look as though he was stabbed. Arnie then throws a saw at a guy hitting him in the chest. The guy actually just catches the saw in his arms in a way to make you think he got hit. Then Arnie swings some sort of gardening tool into the gentiles of a man, but he actually stops it before it hits the guy and the thug just holds onto the handle. Finally, Arnie hacks off the forearm of a another man. You can tell that his arm was fake from the elbow on.

95. The gun that Arnold uses at the end to take out a hundred soldiers would need to be deployed. The kickback would knock even Arnie flat on his back after a few shots fired. And there is no way he could run and shoot at the same time.