A (remotely) better ending?
Well, since the director introduced the remote control and the "what is reality" questions, here is, to me, a much more satisfying ending.
When Naomi Watts is leaving to run to try to get help, the husband says to her: "Honey, it must've been the pain, but, I totally forgot about the remote. Go to the living room, get it, and let's start this nightmare over".
Then, when Peter and Paul first show up together, they get blown away by the husband and wife.
Unfortunately, I can't figure out how to add in the line "We have our OWN remotes, a$$holes", which would REALLY be a great way to top it all off.
Or, I guess they could try finding Adam Sandler's house and get HIS magic remote? :)