@Nezchan @socketwench - pretty much. The king and arduous task of making and remaking pitches for a Star Trek movie with Paramount continually rejecting them made them lock into the Phase II pilot when Paramount said the pilot is what they wanted in a movie.
The two main production disasters during filming were the constant ego driven rewrites between Gene Rodenberry and Harold Livingston and the original effects company failing to deliver a single shot after a year.
That we got a movie at all was amazing.