As I said before, movies need to be HUGE overseas in order to actually make a profit from foreign ticket sales. According to some articles I read on the subject back in the day, not even 15% of overseas grosses end up in studios' pockets, and as for the domestic grosses, if I remember correctly, when everything that needs to be deducted IS deducted, the studios keep roughly just over one half of it.
With home video and TV it's a whole different story, this is where the studios get a much much bigger cut, and that's why ST XI is a huge success (the DVD/BR sales numbers are quite stellar).