London, October 28 Thousands of Michael Jackson fans flocked to theatres around the globe to view the late star's last performance in the film 'This Is It'.

The documentary features behind the scenes footage of the King of Pop as he prepared for his sold-out comeback concerts in London before his sudden death on June 25.

The two-hour movie, which is being hyped as the last-ever performance by the singer, was rolled out for 18 simultaneous premieres in five continents, reports the Telegraph.

Devotees were said to have grabbed all the advance tickets in several countries within days of going on sale last month.

Analyst Jeff Bock of box office tracking firm Exhibitor Relations said the film, which expands to 110 territories by this weekend, could "play bigger than Elvis."

Bock said: "This is more of a memorial than a movie. I think we could be looking at 70 to 100 million dollars in the first five days alone, which is extraordinary for this type of film." (ANI)