Differences between Eclipse the book and Eclipse the movie?

So... me and my best friend are both big twi-fans, and we made a bet who could find most differences between Eclipse the book and the movie, and I wondered if you could help me, please, please, please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!