Derida and Deconstruction thinking activity

I think that deconstruction is a theory. It is system of reading which questions and claim to ‘subvert’ or ‘undermine’ the assumption regarding system of language. It shows conflicting forces within the text. In new criticism text remained in the center while in this process the importance of the reader and his understanding increased or reader response theory. 

~ Post Structuralist view that there is no ‘a-textual origin’ of text. If here I give the example of the movie ‘Kuch kuch hota he’ In this movie we can say that if we take Shahrukh as a center. Then any audience take Salaman as a centre so that is new movie. Then any other person take Professor (Anupam kher) as a centre so another movie. So we can say that there is no ‘a textual origin’ of text.
Then post sructuralist critic ‘read the text against itself so ‘textual subcinscious’. In this movie Shahrukh said that ‘Ham jindagi me ek bar jite he, ek bar marate he, Shadi bhi ek hi bar hoti he aur pyar bhi ek hi bar hota he’. But in this movie we can see that first he married with Rani Mukharaji and then once again he married with Kajol. So in this movie he speak that dialogue and then he married twice in the movie. So here we can see ‘movie against itself’.