Postwork of short movie 'agent 327'

I do not know if my writing matches the nature of the forum.
However, I ask.

I was very impressed with the short movie ‘agent 327’.
I wonder if the production crew used Blender for postwork like compositing or color correction.
I know that Blender Composer’s performance is slower than major effecting & compositing tools like After Effects.
So I wonder if they used the blender to do all the work for their movies.
If you have any information, please let me know.
Thank you.

You can find it at all thing from asset, characters, tutorials, weekly updates of Agent 327. That’s a open-project, all-things, you could download.