When Becky runs into her house in the opening sequence, the front door is in the middle of the house, but when it cuts to her inside, there is a window by the staircase, revealing that it was filmed inside a different house with a front door on the left side rather than in the middle.
When Lucas and Becky are leaving Lucas' room, you can see the mic pack hooked to the back of Lucas' pants.
A C-stand with a light on it is visible in the kitchen scene.