The movie is a nostalgic wallow in old-school production design.

The Bee Gees live on and pop up on the soundtrack and Harry Belafonte’s “Day-O” is reprised.

But one musical gag, teased in the first act and camped to high heaven in the finale, stands out.

A picture that brings “Beetlejuice” and Jeffrey Jones (sort of) back to life also resurrects Donna Summer, Richard Harris and Jimmy Webb.