My sentiments exactly:
On the one hand it's got a fabulous cast. On the other, Kristen Stewart has never quite impressed me in her previous work. On the other, it's got a lady in full plate armor killing motherfuckers.
A reasonably well-adapted father in his mid-30s should, in no way, think this is as cool as I actually do. I have a problem. I admit it. This is the first step.