Director Rob Reiner has created a fifteen minute sequel to his mockumentary classic This is Spinal Tap. While the short film was featured at the Tribeca Film Festival in April, it won’t be released in theaters any time soon. It is available, however, online. The sequel is part of an effort to raise money for Live Earth. Spinal Tap will also reunite for a performance at Wembley Stadium in London as part of the Live Earth Worldwide concerts on July 7.

Since their last breakup, the members of Spinal Tap have apparently been raising miniature horses, producing hip hop albums and languishing in Internet rehab.

You can find the Spinal Tap sequel on the Live Earth MSN site.