Benchley's short films are generally pleasant, but only occasionally rise to the level of his written output. Many of them focus on the foibles of bourgeois domestic life, and come off rather like the later TV sitcoms of the '50s. However, the filmed versions of Benchley's double-talk lectures sometimes scale the heights of inspired insanity he regularly reached in his magazine pieces, and one very early talkie from 1928, The Sex Life of the Polyp, is one of my favorite Benchley shorts, a perfect little gem of comic absurdity.
As for the item at hand, A Night at the Movies is a pleasant but unremarkable effort devoted to the petty irritations encountered by Mr. and Mrs. Average during an evening at the local Bijou. There is confusion with the tickets, difficulty finding seats, a tall fat man who sits directly in front and blocks the screen, someone with a persistent cough, and a moment of strangeness involving a small boy with an eerie stare. (Today, of course, a major problem would be pagers and cell-phones going off during the show.) For modern viewers this short may be more valuable as social history than as comedy, seeing as how it was made in an era when men in public places had to find a place to stow their hats, and dancers performed at movie theaters between the features. On that level this film is an interesting time capsule.
This modest comedy short may not look like much alongside the Marx Brothers, but don't dismiss Robert Benchley. You'll just need to look elsewhere for his funniest and freshest work.