Factual error: The glass shattering and falling in the greenhouse would have been unlikely to kill Marlene, let alone even cause that much damage to her, as the glass would have very little to no time to gain more force, falling at that low of a height. And if Marlene were to be killed, she would have probably bled out over time, as opposed to almost instantly dying as the film implies.
Visible crew/equipment: When Peyton is looking for Emma and Joe, she walks into the bathroom. When she turns the corner, you can see the camera man, in the reflection of the mirror, above the sink.
Plot hole: When Peyton is raging in the bathroom, she's making an extreme racket yet no-one hears a thing.
Answer: Claire had called 911 but she couldn't talk. I'm sure their city had enhanced 911 coverage so they knew where the call was coming from and sent paramedics.
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