A teaser is out for The Fallen, an upcoming Halo fan film.
Halo: Nightfall - Official Trailer
The official trailer is out for the Halo: Nightfall series.
Halo 4: Spartan Ops - Episode 4
The fourth CG episode is out for Halo 4: Spartan Ops.
Halo 4 Trailer VFX Breakdowns by Method Studios
Method Studios do VFX breakdowns of several scenes from their recent cinematic trailer for Halo 4.