Photos of the T 57K during the war days are rare, as are films. Extremely rare are colour films. In Hermann Pölking’s documentary “Wer war Hitler?” (Who was Hiler?) there is however a rare shot of a T 57K with a driver and officer on board. It shows the German Wehrmacht retreating after their unsuccessful Ardennes counteroffensive in 1944-1945
Background info on Ardennes counteroffensive: https://en.wikipedia.org/wiki/Battle_of_the_Bulge