Double, how about triple the resources? Is not the universe infinite, worlds inhospitable could be terraformed to be productive as space travel seems to be quite an everyday thing in the movie.
But chilling is Professor of Bioethics at Princeton University and Laureate Professor to the University of Melbourne, Peter Singer advocating that the human race needs to be significantly reduced in population through not just birth control, but by the need of wars, Epidemics, and necessary genocide to save our world. Fiction becoming Fact? Closer to reality than we think.