For the film's motion to be accurately rendered on the video signal, a telecine must use a technique called the 2:3 pull down (or a variant called 3:2 pull down) to convert from 24 to 29.97 frame/s.
For the film's motion to be correctly displayed on the video signal, a telecine must use either 2:3 pull down or 3:2 pull down to transform the 24 frames per second footage into 29.97 frames per second.