Netflix

Netflix has no plans to Support Ubuntu for video streaming

“There are no plans to support Netflix on Linux,” 

Joris Evers, Director of Corporate Communications at Netflix

The alternatives that run on Ubuntu

Using a virtual machine
Using a virtual machine is a non-ideal solution, but it works. But if you have a Windows disc lying around(XP and above). Just think of it as running a really inefficient video player program, instead of a really backwards workaround.