Cube - Il cubo

Director Vincenzo Natali deleted a final moment from the film in which it's shown what is outside the cube. He said when he was paring the film down in the editing room it was the first thing he removed.

When Leaven first checks the rooms' set of numbers for primes, she has to think for a few seconds for each set. The first set of numbers she checks ends in 5; the second set ends in 2. Numbers ending in 2 or 5 (other than 2 and 5 themselves) by definition cannot be prime. Someone proficient at math, as Leaven is, wouldn't need to think about the numbers; she'd register they were multiples of 2 and 5 and move straight to the last number.

Featured in Siskel & Ebert & the Movies: Shaft/Boys and Girls/Jesus' Son/Titan A.E./Pop and Me (2000)