No, it was the real Michael Jackson himself, the reason he looked different might be because according Arnie Klein Michael was "rebuilding" his face.
His last set of concerts was going to occur in London.
The O2 Arena where his final concerts would have been.
He wanted to go into making movies once his London concerts were finished.
Take care of his children, write songs, dance, do performances, meet new people. He was also preparing for a series of concerts in London.
He recorded all of his previous rehearsal's, he had been doing it since the Bad tour.
His last series of concerts were going to be the This Is It ones in London, there were some rumors that he was going to take around the world eventually, unfortunately he passed away before the shows.
Yes that was really him.
London
Yes it was supposed to start off in London.
his final concert is in London
When he was touring, and preparing for his shows in London.
It's about the rehearsals and preparation for the London concerts, it has some very brief interviews with the people who were working with him, and has some pretty amazing special effects and mini videos to go with the songs. "This is It" shows the rehearsals for the planned concert before Michael Jackson's death. This is almost a concert itself without an audience. There are also some interviews of the members of his back up band.