Using footage from multiple sources YouTube user jaronpitt‘s has assembled a very impressive trailer for a non-existent Green Lantern movie starring Firefly star Nathan Fillion.

[youtube]http://www.youtube.com/watch?v=_hTiRnqnvDs[/youtube]

This is an impressive mashup that gives us an idea of what the actual live-action Green Lantern movie will actually look like.

Thanks to Fip Lele.