[Gayalondiel]

I don't think its a coincidence at all. It connects Frodo symbolically with Sauron, demonstrating the part of him that is lost with the Ring, just as Sauron himself is lost.
Thats just my view though, I imagine there are plenty of people ready to disagree! [img]smilies/smile.gif[/img]

Incidentally, it seemed a pity to me that Peter Jackson, working in a highly symbolic medium, missed this completely and lopped off all Sauron's fingers.