What movie editing software do REAL film editors use?

Question

I mean the big-wig guys down in Hollywood working for big movie production companies like Universal, Touchstone, or Columbia.

Answer 1

The standard for many years has been the AVID system, which uses its own proprietary software.  If I remember correctly, it was developed for use by Lucasfilm's company, (called "Edit Droid" at the time) and then sold off to Avid.  There are now several versions, including Avid DS, Avid Media Composer, etc.  The home version is called XPress Pro and there's also a student version of Media Composer.

There are now also plenty of smaller companies and indie filmmakers using Final Cut Pro on regular Macs though.

Answer 2

AVID, all the way.  Especially now with digital on the horizon.