TMDb/Spinal Tap II: The End Co Movie Paul McCartney shines in Spinal Tap II's hilarious cameo. Read about his role in Rob Reiner's final film, the cult sequel's standout moment. April 4, 2026 AceShowbiz - Spinal Tap II: The End Continues marks a memorable return for the cult classic rock mockumentary, featuring a standout cameo from music legend Paul McCartney. In what would become director Rob Reiner's final film before his untimely death on December 14, 2025, Paul McCartney brought his effortless charm and wit to the manic world of the fictional rock band Spinal Tap.