Here are youtube videos of the iTunes Eclipse cast and filmmakers chats. Some great insider discussion!

Bryce Dallas Howard, Dakota Fanning, Xavier Samuel
Part 1

Part 2

See more after the break.

Elizabeth Reaser, Nikki Reed, Peter Facinelli
Part 3

Part 4

Ashley Greene, Jackson Rathbone, Kellan Lutz
Part 5

Part 6

Alex Meraz, Chaske Spencer, Julia Jones
Part 7

Part 8

Thanks Rebecca!