In the scene where Iris walks into Amanda's room with the entertainment center, she picks up a DVD with a heart on the back before she is interrupted by the front gate ringing. What is the DVD?

Is the trailer made by Amanda for the film starring Lindsay Lohan for an actual film? If not, how much was Lindsay Lohan paid to appear in the trailer? [I'm not sure how much she was paid, but no, it isn't a real movie.]

When Kate Winslet first gets home, she turns on the gas on one of the stove burners (but doesn't light it). As Cameron Diaz starts talking with her via the Internet, two of the burners are on, and she gets up and turns one of them off. If I'm not wrong, the other remains on and because of the fireplace would end up setting her house on fire. Or it might just be that the other burner was already on and burning to heat something. Could anyone please give a more certain answer about that? [Iris only turns on one burner without lighting it. When the Internet tone for getting a message sounds, Iris comes to her senses, turns off the unlit burner, opens the window and then answers Amanda's message.]

I'm assuming that when Graham received the phone calls from Sophie & Olivia, who Amanda thought were other girlfriends, they were actually from his daughters. I have a couple of questions about this. Firstly, for the girl's names to flash up on his phone they must have their own phones but surely the youngest one at least is far too young to own a phone and ring her father? Secondly, wouldn't Graham when receiving a phone call from his daughter answer it instead of saying, "I'll ring her back"? I know at this point Amanda doesn't know he has kids & he might be trying to hide it from her, but later he does answer a phone from the other kid in front of Amanda before she finds out about the girls. [1. As far as the daughter being too young to ring her father, there are actually some companies that make phones especially for children. They only dial the parent and the police and are very easy to use. 2. It's entirely possible that he didn't need to speak with Sophie right away, whereas the call from Olivia comes later and he may have been expecting it.]