Welcome back to our queer film retrospective, “A Gay Old Time.” In this week’s column, we revisit Gay Purr-ee, an oft-forgotten animated musical featuring the voice of the original gay icon, Judy Garland.As we have discussed many times before in this column, queer content and representation on films in the early part of last century was often sparse, hidden, or coded. We’ve had to dig for hinted-at relationships and character backstories, read into the mannerisms of the villains and sidekicks, and find resonance in themes rather than in explicit stories.