Q: I bought 3 itunes movies and they didn't come with their itunes extras

I recently purchased Divergent, The Amazing Spider Man 2 and Captain America. All three movies in store make it clear that they come with itunes extras, however when I bought the movies no itunes extras downloaded.

Typically the itunes extras and the movie download side but side but for some reason I just got the movie all three times. I want my itunes extras, I even thought maybe they were sold separately but there was no way to purchase them separately in the store.

So how do I get the extras?