A book is maybe about 350 pages, and the prose allows for readers to get a glimpse into the internal lives of the characters. A screenplay is 120 pages, and it's all dialogue and action. The pacing of films is different, the structure is often different, and the internal lives of the characters must come across through the acting. Movies are just a different experience than reading - so it just depends on what an individual prefers.
Nicholas SparksEven his highly emotional Italian mother didn't believe that true love could blossom overnight. Like his brothers and sisters-in-law, she wanted nothing more for him than to marry and start a family, but if he showed up at her doorstep and said that he'd met someone two days ago and knew she was the one for him, his mother would smack him with a broom, curse in Italian, and drag him to church, sure that he had some serious sins that needed confessing.
Nicholas Sparks