Careful everyone. Your putting too much sense to Michael Bay movies.

I think the spark works much like a human heart pumping the energon to parts of the body to power them.

Also I think Megatron and Prime were pretty good friends before megatron got corrupted by the fallen into creating the decepticons. With the protoforms thing. I doubt it'd be too hard for a sentient robot to craft a spark.

 

Seems to be this is your interpretation to have it make sense. All I took from Optimus calling megatron brother was that at one point they were on the same side. To have them actually be brothers would raise too many questions. I just think its sad the films dont stand on their own. TF1 can stand on its own for the most part but TF2 just isnt tied in well at all.

 

Many thanks. I have learnt a lot...

1. There was a lot of background thought in the first movie
2. It was almost completely more radical than I gave it credit for
3. Almost none of it was actually presented to the viewer
4. Most of it was dropped or changed in the second movie
5. This background would have been very interesting, kept the two films more coherent and explained several of the 'huh' moments

 

Yep, that's about it.