Note: I will post my Thor review later. 🙂
If you haven’t seen Insidious then just skip this whole review (and movie). The sequel continues right at the drop off from the first, and this is both a fairly bold move and a way to guarantee no new audience members. Sure, it does give enough backstory for you to understand what’s going on, but with no set-up of the characters you won’t really be invested in what happens to them. Obviously, this review contains spoilers for the first movie, so please, go watch it or skip it.