<span class=normal>Mr. Amitabh Bachchan seconds the director, These children go through a lot of physical changes - they lose their hair, their head becomes big, their face gets wrinkled. But their thinking is still that of a 12-year-old. <BR><BR><br><p class=clear>&nbsp;</p>The look is most important in Paa because we had to go through a lot of trail and error. The look was designed by a very famous make up artist from Hollywood Christian Kifle, whos won an Oscar for his previous work. The prosthetics take about 4-5 hours to put up and that was trying. </span>