Of the institutions shaping modern cinema – from superhero tentpole films to CG-animated family romps, just two of the defining crazes are the love of cult movies and the seemingly insatiable thirst to remake them.

As gruff commander Colonel Graff (Harrison Ford) tells the International Military recruits, including hero Ender (Asa Butterfield) – through the round gate off the austere staging area is a zero G environment.