Therin of Andor wrote:
The Overture for TMP run 1:43, not 3 minutes.
When TMP played at the Paramount in 1979-1980, "Ilia's Theme" was piped through the foyer and corridors on a seemingly endless loop.
Paramount Theatre, Sydney - inside
by Therin of Andor
, on Flickr
And in the old (United Artists?) theater in the Valley Forge Convention Center in Pennsylvania, as well. I don't know if it was looped, but I distinctly recall hearing the music playing as we were seated and before the lights dimmed.
With regards to V'Ger's cloud, I thought it was explained in the novelization that the luminescent cloud surrounding V'Ger was the result of interstellar hydrogen impacting with the alien vessel's enormous warp field. I've seen that explanation somewhere ... i assumed it was Roddenberry's book.