There's a mix of beautiful CG and gameplay in this trailer for Halo 4's multiplayer experience, Spartan Ops.
Halo 4 - CG Intro
Digic Pictures have created this CG intro for Halo 4's single player campaign.
Halo 4: Forward Unto Dawn - Part 4
The action ramps up in episode 4 of Halo 4: Forward Unto Dawn.
Halo 4: Forward Unto Dawn - Director Interview
Stewert Hendler talks about directing the Halo 4: Forward Unto Dawn webseries.