Here's a photocopy of the script to STAR TREK THE MOTION PICTURE by Gene Roddenberry & Harold Livingston, a shooting draft from July 19, 1978.  It is in very good to excellent condition, showing a little wear around the edges, but some of the pages are a little crooked. It runs about 141 numbered pages. 

This came from a friend thinning out her collection; she got it at a Star Trek convention long ago. 

Though it's listed as the shooting script, changes were made daily after it, so it's interesting to watch the movie and note the differences.

From IMDB:  When an alien spacecraft of enormous power is spotted approaching Earth, Admiral James T. Kirk resumes command of the overhauled USS Enterprise in order to intercept it.  (In case you forgot.)

Orders can be combined.  Excess postage will be refunded.

Thanks for looking.