That portal jumping in the final act was like something out of my dreams, I loved that.  And I love that it took place in London, too.  I could totally see some of the plot twists coming as well, that was a problem, I didn't feel like there was that much surprise going on (because you know the status quo has to be maintained), but at least the execution was fun and entertaining.

Good lookin' movie, I love that they got a Game Of Thrones guy in, I thought it helped keep all these CGI-heavy realms feeling grounded and real.

I haven't seen the movie in a while, but I remember still digging what a geek Natalie Portman is in the movie (the whole Scooby gang is adorable).  And while Tony Stark got PTSD from Avengers, Solveig just went loopy and pantsless, I thought that was a nice touch (I also liked seeing Chris O'Dowd show up).  My only real issue is with Portman's character being "sick," she really doesn't get a chance to muck in as a bit of an equal, that kind of bugged me.