Continuity mistake: Notice how Julie pumps her shotgun twice within a few seconds in the lab without once firing.
Continuity mistake: In the first story, when the guy with the balls under his chin is making a toast, the amount of vodka in the glasses changes when the camera angle changes. (00:08:30 - 00:09:30)
Continuity mistake: When Keisha shows the father the painting she made, the father places it on the table over the color palette. Then after Keisha screams in the father's face, the magazine is gone. He sprays her with breath spray and replaces the painting over the color palette. (01:07:00)