In the beginning, the TV Kenneth gets for Harold's father-in-law is a Sharp 3D TV. However, later the TV the family is watching on appears to be an early Samsung LCD TV, with the large circle on the bezel. They are also wearing passive 3D glasses, which only LG TVs starting in 2011 would use. Sharp uses active 3D technology in their 3D televisions.
When the feces is thrown at the minivan's window it creates a linear shape. But the next time we see the window as Harold is getting dropped off at his house, we can see that the feces on the window is now a different shape, no longer linear. Now it's a round clump. Same amount is there, but just in a different shape.
When the first protester throws the egg at Harold's assistant, we see on the far left a woman wearing a red scarf and a woman next to her wearing a multicolored scarf. In the shot just before this the woman wearing the red scarf has vanished, and the woman with the multicolored scarf who didn't have a big white sign in her hands, now does.