The Sag Harbor Cinema’s final pre-opening film series pays tribute to moviegoing as a collective experience, and to the theaters where cinematic adventures unfold.

Now in its 15th year, Tripoli Patterson’s “Thanksgiving Collective” exhibition is a certifiable holiday tradition with now more than 50 artists on view in an oversized industrial shed in Wainscott.

This heroic story, an uplifting portrait and an engaging account of a glamorous age, also shows what happens when a unique individual who finds acceptance overseas runs headlong into American racism.