Is This Footage Of The Collapse Of The World Trade Center Towers A Proof 9/11 Was An Inside Job?

Two days ago, this video of WTC collapse ended on the YouTube. It shows everything from 11th September in year 2001 when terrorists crashed two planes in both towers. But was this an inside job? See for yourself how a building 7 next to WTC towers collapses like in a controlled demolition. This can be seen at 2:45.