Alfonso Cuarón
http://www.imdb.com/name/nm0190859/
The IMDb page for the film's director, who has directed numerous other extremely successful films
Children of Men - IMDb
http://www.imdb.com/title/tt0206634/
The IMDb page for the movie itself, listing the film's cast and crew
P. D. James
http://www.penguinrandomhouse.com/authors/14352/p-d-james
Penguin Random House's author page for P.D. James, the author of the novel The Children of Men on which this film was based
"Children of Men" Review
https://www.theguardian.com/film/2006/sep/22/juliannemoore.thriller
A film review of Children of Men, published by The Guardian