Also, the frames of the movie itself are either I (key) frames, B frames or P frames.
You're ignorance on this subject it real glaring.
You denounce my claim that widescreen movies were an attempt to get tv viewers into theaters and then you agree with it. Whatever.
What you refuse to admit is that they were making movies WAY before there was even tv.
You're just pissed because movie makers started thinking outside the 4:3 ratio box.