Currently Being ModeratedMay 6, 2012 9:38 AM (in response to scornish)
You cannot import 3D file data into Motion, as it is not a 3D app but a planar compositor. You can manipulate those planes in 3D space, but it cannot represent 3D models. I believe you can import camera data though.
Currently Being ModeratedMay 7, 2012 11:51 AM (in response to Adam Scoffield)
Take a look at this video from Mark Spencer. It explains the basics of a C4D/Motion workflow. Again, as Adam states, this does not bring in 3D models from C4D.