Facts & Mistakes of MLP

Fact 1

When did the human Twilight (the one with the glasses and the one from CPA) was first mentioned?

A. 1st movie (Equestria Girls)
B. 2nd movie (Rainbow Rocks)
C. 3rd movie (Friendship Games)

Answer:
The answer is the first movie.

Some of us knew that the human world's Twilight was shown in the epilogue of Rainbow Rocks which was at the end of the credits and was continued in the 3rd movie , Friendship Games.

But haven't you heard someone mentioning her in the 1st movie? It was Pinkie Pie.

As the pony Twilight went to the gym to sign up for the 'Princess Of The Fall Formal', she meets human world's Pinkie Pie.

And this was the point. Haven't you heard Pinkie asking Twilight this?:

"I've thought you've looked familiar. So now that I'm looking at you, Do you have a twin sister that lives in the city who has a dog named Spike just like that one?"

"Umm..maybe?" Twilight then replied.

So we know that Crystal Prep/CPA, Shadowbolts are in the city and we all know that Twilight always have her dog which is Spike.

So, if my hunch is right, the human world's Twilight was already mentioned at the first movie by sayings, and at the second and third movies, human Twilight was mentioned by personal I mean what she looks like.