Arrow shoots Roy with 3 venom arrows in the chest however, when they pick him up, the arrows are spread all over his body including one in his right leg.
When Roy enters Verdant, the security guard he throws to the ground bounces off the bar and then appears to bump the camera mount (the frame shakes).
After the Moira Queen rally a Verdant bar man opens a bottle of Champagne by pulling the cork out and spilling half the contents. A professional would never do that.