 The episode was given to post @-@ production team The Mill after filming concluded . The number of effects in the first draft was almost three times larger than broadcast ; consequently , several scenes — most notably , all but one shot of the attack on the Valiant — were cut from the episode . The Mill created two notable effects for " The Stolen Earth " : the invasion of New York City , using reconnaissance photos and establishing shots from the filming of " Daleks in Manhattan " to create a 2.5D shot of the city ; and the planetary array at the Medusa Cascade , using a fully three @-@ dimensional model . 
