Opening an online movie file with Avisynth?

[neo_sapien]

Here's what I'm trying to do:

# SOURCE
LoadVFAPIPlugin("H:\DivX\Tools\QTReader\QTReader.vfp", "QTReader")
QTReader("http://starwars.apple.com/ep2/breathing/img/sw_ctp_640.mov")
ConvertToYUY2()
FlipVertical()
SelectEvery(25,1)

Can that be done? (perhaps using some sort of URL VFAPI Plugin?)