Every other month, the art-deco cinema pairs with Boston Lyric Opera to present “Divas in the Dark,” a series of opera-based films.,It’s late Sunday morning, and two types of people are flocking to the Coolidge Corner Theatre: moribund opera lovers, and students who don’t particularly care about opera but are cruising for a free meal.

Every other month, the art-deco cinema pairs with Boston Lyric Opera to present “Divas in the Dark,” a series of opera-based films. Two have already been shown, Madame Butterfly in September and The Magic Flute in November.

For Butterfly, the theatre showed Fr