Due to the fleeting 2 '45 "length of each film reel, Mrs. Lee also had to stand behind the camera with her eyes fixed on the tiny time-indicator window, reading out the times as the reel wound toward its finish. That allowed Lee to avoid having to change reels at crucial moments or waste film stock.
由於 2 分 45 秒稍縱即逝，開始拍攝時，李太太還要站在攝影機後方，緊盯著顯示底片呎數的小視窗，一直不停的跟著拍攝速度念出影片長度，好讓他嚴格掌控時間，避免拍到精彩鏡頭時臨時換片，也避免耗費太多底片。