Well, Maggie Gyllenhaal in 'Stranger than Fiction' plays an important part. Her character often acts as a catalyst for the protagonist's self - discovery. She has great on - screen chemistry with the other actors, which makes the interactions in the movie feel real and engaging. This, in turn, enhances the movie - going experience for the audience.
I haven't come across any reports stating that Jake Tapper is penning a novel. His focus seems to be on his journalistic endeavors, such as reporting the news, conducting interviews, and providing analysis. However, it's not impossible for him to venture into novel - writing in the future, but for now, there's no indication of it.