Special Edition, extras and alternated scenes on blue ray or DVD?

Legendary Xenomorph
MemberOvomorphOctober 11, 20121629 Views4 RepliesI bought prometheus on DVD (I don't have a blue ray player) and before it I saw trailers and interviews about special editions, deleted scenes and extras on blue ray and DVD.
I wanted to see the 20 minute special edition to see the whole film just like the other alien films. When I bought the DVD I was nervous it showed only 6 alternated/deleted scenes so I thought maybe the special edition is in the movie if I play the film all the way to the end I might see something but it didn't.
I just need to know is the extras and special edition only on blue ray and not the DVD (I kept the receipt so I can return it).
But I need to know from anyone who has bought the blue ray or anyone knows about the DVD or blue ray with the extras or not.