 Eric Koretz served as director of photography ; he joined the team during a shift in focus in January 2008 . Koretz used a Panasonic AG @-@ HPX500 P2 HD camcorder . He commented to industry publication Videography about the choice of technique , that due to the intensity of the production team 's travel schedule tape format would not have been an option . He stated he preferred using P2 cards over the HDD @-@ based format due to its superior reliability . During the editing process , Glen Echo Entertainment utilized eight Apple Macintosh computers with Intel processors , equipped with Apple 's Final Cut Pro editing software . 
 Eric Koretz served as director of photography ; he joined the team during a shift in focus in January 2008 . Koretz used a Panasonic AG @-@ HPX500 P2 HD camcorder . He commented to industry publication Videography about the choice of technique , that due to <a href='None' title='1'><mark>the</mark></a><a href='negative_concord' title='2'><mark>intensity</mark></a> of the production team <a href='null_genetive' title='3'><mark>'s</mark></a>travel schedule tape format would <a href='negative_concord' title='4'><mark>not</mark></a>have <a href='negative_concord' title='5'><mark>been</mark></a> <a href='None' title='6'><mark>an</mark></a><a href='negative_concord' title='7'><mark>option</mark></a> . He stated he preferred using P2 cards over the HDD @-@ based format due to its superior reliability . During the editing process , Glen Echo Entertainment utilized eight Apple Macintosh computers with Intel processors , equipped with Apple <a href='null_genetive' title='8'><mark>'s</mark></a>Final Cut Pro editing software . 
Eric Koretz served as director of photography ; he joined the team durin a shift in focus in January 2008 . Koretz used a Panasonic AG @-@ HPX500 P2 HD camcorder . He commented to industry publication Videography bou da choice of technique , dat due to no intensity of tdaproduction team  travel schedule tape format would have ain't no option . He stated he preferred using P2 cards ova the HDD @-@ based format due to its superior reliability . During thdaditing process , Glen Echo Entertainment utilized eight Apple Macintosh computers with Intel processors , equipped wit Apple  Final Cut Pro editing software .