Why Did The Hunger Games Movie Change So Much From the Book?

In the film adaptation of�The Hunger Games, why did they cut out most of Rue's lullaby?many people's favorite part?to add in an unnecessary uprising scene? It didn't...

Source: http://feeds.eonline.com/~r/eonline/answer/~3/cjHSE0AOewY/304358

Monet Mazur Monica Bellucci Monica Keena Monica Potter