When Crane says they need to make some weapons out of copper, Alex grabs a blowtorch and says "Someone get me a whole mess of pennies!" The problem is, U.S. "pennies" (correctly called "cents") - including the one Diana holds up - have been made from zinc since 1982.
While Diana is sitting on the back of the ambulance talking to the Asian guy (shortly after the first commercial break), all close-up shots of the guy show green-screen in the background instead of the Lincoln memorial seen in the later wide shot.