We describe a recent proof of concept demonstration of international, grid-based collaboration in Post Production for Digital Cinema. In the demonstration, very high resolution (4,096 x 2,160 Pixels x 24 Frame per second) Digital Cinema content captured in the Czech Republic was rendered using processing resources in the United States. Editing and color correction were carried out in real time by an editor/colorist in Canada under the artistic direction of a cinematographer in the Czech Republic. Final conforming, product assembly, and exhibition were carried out in the Czech Republic. The creative workflow demonstrated was made possible by a 10 GE fiber networking infrastructure and by grid-like resource management.