Moviesandbox is currently in pre-Release!
That means things are a little wonky, and you should let me know if it even runs on your system!

Installation instructions:
Just unzip to a directory of your liking.
Use the Executable that is suitable for your system.

System Requirements:
Windows PC or Mac
(both executables in this package)
GeForce 8 or higher
(ATI graphics seems to be buggy, please let me know!)

Here’s the download link:

http://moviesandbox.net/download/msb_prerelease_0352.zip

The download contains all sourcecode and C++ projects for XCode (Mac) and Codeblocks (Windows)

And older versions can be found here:
http://moviesandbox.net/download/msb_prerelease_0334.zip