Found the single disc edition of the movie at a Sanity store yesterday, and it was the first time I had seen it in stores. I think they must have just released it recently, as it it almost impossible to find any version of the Movie in stores now.
It is just the movie with a single commentary track to it. The cover/jacket is rather boring, with little on the movie itself other than a Radio Host comment on the plot (as the only plot info on the jacket) and very little imagery from the movie on the jacket. The front is the Optimus face on white background, similar to the EzyDVD tin case front.
Sanity's price was $20, (it was also in their 3 for $40 section), so expect other stores to have it for $20 or less as well.