Books to movie adaptations are never perfect, and with IT having a TV miniseries from the 1990s, there are plenty of differences worth noting from all versions of the story! WatchMojo presents the Top 10 Biggest Changes made by IT 2017! But what will take the top spot on our list? Will it be the more graphic R-rated style, the film losing the flashback storytelling aspect, or Georgie's death? Watch to find out!