Tsyroc wrote:
In the comics some artificial beings have had some luck moving Mjolnir. The Air Walker robot was able to hold it without it dropping from his grasp*. Some of Hephaestus' automatons were able to move it from it's resting point but it took a lot of time, effort and pulleys and the like.
So it could be interesting. Ultron might be able to lift and move the hammer but not access any of it's powers. It might be cool if Ultron lifts the hammer but slowly the worthiness aspect kicks in as Ultron becomes more "alive", or the hammer adjust to Ultron as a being. I've seen some posters suggesting that the Vision is going to be in the movie. Perhaps at some future point the Vision not being able to move Mjolnir will be proof that he is alive?
*The Air Walker robot was also more susceptible to Mjolnir going through his chest when compared to a living Herald of Galactus.
Don't forget that Beta Ray Bill, probably THE most worthy apart from Odin and Thor himself, was an artificial being (a cyborg, or more accurately, a robot with an organic brain), and was easily able to wield the hammer and all of its properties. At the Baltimore Comic Con a few years back, Walt Simonson mentioned that what the Asgardians would consider 'worthy' would be very different from what we would consider worthy:
Walt Simonson wrote:One of the cool things about Thor was the enchantment around Mjolnir and the original inscription on it. So I thought, well that means someone else can pick up this hammer and get this power, if they're worthy! So since then, some other big characters, people's favorites, have picked up the hammer, Captain America, Superman, whoever. But at this point, no one had ever picked up the hammer. I liked the idea of Cap walking to the bathroom and seeing it, and grabbing and just tugging, not being able to. So this had to be someone new. This is the most powerful weapon of the Norse gods. This hammer is a killing weapon. It's used to kill Frost Giants and others. So, Superman couldn't pick it up, cause he's never going to kill anyone, and the hammer knows that. Captain America, he's too patriotic. He's too much a symbol of America to be chosen by this Norse artifact. So he couldn't get it. So I created Bill because he's noble, and he's designed to kill. He's got a great purpose as a warrior, and also the noble ability. That makes him "worthy" whatever that may be.
I don't like being a bastard, but they leave me no choice.
-Marshal Law, "The Hateful Dead"