S.T.
i seriously doubt it was the movie. night terrors and nightmares are NOT the same thing.
i'm betting it's more connected to the hubby's absence, and the ongoing stress in the household. not saying that to beat you up, hon. stress isn't something we can always control.
i think the absolute most important and helpful thing you can do is to get yourself into a zen state of mind, and live there. your entire family will benefit from it.
my kids never had night terrors, but they did have nightmares from time to time. we handled it the usual way, lots of listening, lots of snuggling, occasionally letting them sleep with us (which causes problems for some kids, fortunately not ours), and temporarily monitoring what they read and watched very closely.
good luck!
khairete
S.