Marvella,

I believe that UA shows one batch of movies
domestically one month and then moves them over to their International routes. I know I've looked in Hemispheres to see what they
were showing on the trans-atlantic routes
and seen listed there what they were showing
domestically the previous month or two.
The motion would seem to be domestic->transatlantic->transpacific.
I'm in the air once or twice a month, others
who are more weekly might be able to get a better fix on the exact patterns.
HTH,
JD