What does this film have to say about the ways we construct our identity through modern technology?

This film shows that can change who you are and be completely someone else just using modern technology (e.g. facebook). Also, it shows that some of the relationships that can be formed through the internet can be completely false even though people on one side believe that the relationship is real. For example, in the movie 'Cat Fish' Nev believes that he has a proper relationship with the fake eldest daughter when in reality it is just the old ugly lady called Angela. This proves that modern day technology can be very deceitful as you dont know exactly who you are talking to, you just have to trust when the computer screen is telling you.