I will go to see a movie 与 I going to see a movie有什么区别吗?

I will go to see a movie 与 I going to see a movie有什么区别吗?
I will go to see a movie 与 I going to see a movie有什么区别吗?

I will go to see a movie 与 I going to see a movie有什么区别吗?
I will go to see a movie表示临时的决定
I am going to see a movie表示原本的打算

第二句是错句，应该是I am going to see a movie
含义一样，但后者主观意愿更强，前者是“将要去”，后者是“打算去”

至少后面那句语法错了吧……
I am going to see a movie.吧……