I've often wondered how small-budget movies can hire so many extras or afford special effects—but know I know their secret. Meet the Inflatable Crowd, a range of hireable dolls that have been used in movies like The King's Speech and The Fighter.

It's not just small films which have taken advantage of these faceless dolls, either—big blockbusters like Iron Man 2 and Oceans 13 have also used Inflatable Crowd's 30,000 dolls in crowd scenes and other circumstances where it's not necessary to have to much detail. The company also provides wigs, masks and clothes to dress the dolls with, which would surely be a dream job for a little girl? Shame child labour isn't allowed, really. [Inflatable Crowd via BitRebels via @Jopkins]