The film was shot in the 2-perf Techniscope format to provide a grainy image reminiscent of older horror films and to save money on film stock and processing. Despite this, "Filmed in Panavision" is listed in the end credits.
Both Jennifer Lawrence and Nolan Gerard Funk have appeared in the X-Men film series: Lawrence in X-Men: First Class and X-Men: Days of Future Past as Mystique and Funk in X2: X-Men United as Captured X-Kid.
When called to join a party after school by Tyler, Elissa is called by her mum. First, she holds the phone in her right hand but after a brief cut to Tyler she holds the phone in her left hand.
When Elisa's mother calls the house it diverts to her cell and appears as 'Mom' on the caller ID. When the officer calls the house and it diverts it should therefore appear as a cell phone number, but in fact it says 'Home'.
What are the differences between the Theatrical Version and the Unrated Version?
A
Before the movie hit the theatres, you didn't really hear any censorship which ensured the profitable PG-13 rating. The director even explained that the version we saw in the theatres was exactly how the movie was conceptualized. Still an Unrated Version was released on DVD and Blu-Ray. The result really is a "real" Unrated version: Roughly half of the differences in comparison to the Theatrical Version are alterations that were done due to censorship. Of course, the alterations neither make a gory horror movie out of House at the End of the Street, nor do they make the movie cleverer. Still, the Unrated Version is the slightly better version of the flick and deserves to be called "unrated".The theatrical version runs 101 minutes, while the unrated version clocks in at 102 minutes. (the time differences are so minimal, IMDb does not allow for the alternate running time to be added under that section.)The (US-)DVD and the Blu-Ray include both versions, so you can decide which one you prefer. A detailed comparison between both versions with pictures can be found here.