Turns out that cool 31 Days of Spielberg blogathon is plagued with plagiarism (click here for examples). The author’s kind-of sort-of not-really mea culpa is here; Matt Zoller Seitz of The House Next Door comments here.
Look, any time one of these cases pops up people talk about how it’s a thin line. It’s not. It’s a giant mile-wide crystal-clear line. It’s really, really easy to not plagiarize, and it’s really, really hard to do it, especially in the fashion illustrated by those examples, without knowing that you’re doing it.