Like the original This Is Spinal Tap, Reiner has said that the sequel would largely be improvised, but with a firm structure in place. The filmmaker also cited another key influence of the film, saying it would be modeled in part on Martin Scorsese’s classic documentary about the Band’s final concert, The Last Waltz.

Spinal Tap 2 has released its official trailer, showcasing some of its big-name cameos and the role for a certain Taskmaster favourite. Titled Spinal Tap II: The End Continues, the film sees Nigel, David and Derek reunite for one more gig after one of their songs becomes a viral hit.

The Spinal Tap II trailer is finally here – and this is what Nigel Tufnel, David St. Hubbins and Derek Smalls will be playing in the movie

Spinal Tap II: The End Continues opens wide on Sept. 12. There will be a special Imax-only screening in select theaters on Sept. 10 followed by a Q&A with Reiner (as Marty DeBergi) interviewing the members of the band, drummer not included.

The filmmaker and actor also gives props to Elton John while previewing the long-awaited upcoming sequel, "Spinal Tap II: The End Continues."