Duet

There is a non-interactive version of Glen Keanes animated short "Duet" which is up for an Oscar this year.



And here is a little video by Google’s ATAP (Advanced Technology and Projects) group about the making  of the interactive version for the mobile device to create an interactive mobile-specific storytelling experience, done at 60 frames per second:

 

It is beautiful to see that traditional animation is not dead and is in fact evolving.

UPDATE:  Here is the pencil test which holds up remarkably well without color.