VUDU Extras+ - New Studios

[GuyIncognito]

I started a thread somewhat related to this. However my question was a little different.

Do the extras show up only if you redeem through Vudu?
Or
Regardless of where you redeem a code, you can only view the extras if using Vudu

I remember seeing somewhere that if you redeem the Saw collection through Vudu, you get extras, but if you redeem through Flixster, you don't get any extras.