Towards the start of Avengers: Age of Ultron (the movie), the Avengers take turns attempting to lift Thor’s hammer. Obviously most of them fail, but Captain America manages to nudge it. First of all, why is Thor more worthy than Captain America and second, is it possible that Cap noticed that he managed to move it, but decided to fail the test on purpose? Thanks

Well, the moral philosophy of Mjolnir is a rather complicated subject, and not one I’m super-familiar with. 

But…from the research I’ve been able to do, what qualifies one as “worthy” varies a lot from author to author – does it have to do with selflessness and self-sacrifice, or the ideals of ”pure of heart and noble of mind” as understood by the Vikings? Does one have to be a god, or a human, or can a particularly valiant frog/android/other weird thing be worthy?  

Personally, I think the hammer twitch thing was a sign that Captain America will wield the hammer at some future moment – probably going shield-and-hammer against Thanos in Infinity War, if I were a betting man – but is not yet worthy. Which would fit in with the history of Cap and Mjolnir in the comics – whenever he’s wielded it in the past, it’s always been in a moment of supreme crisis, where Cap is stepping up to fight Set or some similarly supernaturally evil being.