How about a remake of "2001 Space Odyssey" that should scare the crap out of passengers.
Capt: Computer I'm off to the lav, you have control.
Comp: OK Capt I have control.
Capt: Computer I have fished up here you can let me in now password is ........
Comp: Sorry Capt I can't do that.
Capt: I'm the Capt let me in.
Comp: Sorry Capt you said I have control and that's what I have been programmed to do.
I have also disabled the flight deck door unlocking mechanism.
to be continued