Question:  Victory Tischler-Blue was cast in "This Is Spinal Tap" by a director who came to national prominence with the role of Michael Stivic on what?
Sentence (from "Michael McKean"): He has played roles in several Christopher Guest ensemble films, particularly as David St. Hubbins, lead vocalist and rhythm guitarist of the fictional rock band Spinal Tap in "This Is Spinal Tap".
Relevant evidence: No