Not to be mistaken with the famous British kitchen sink drama SATURDAY NIGHT AND SUNDAY MORNING; the next day hardly matters and there are hardly any sinks in SATURDAY NIGHT OUT...
Except maybe at Heather Sears' bizarro apartment as a flaky, blunt and childish Beatnik chick, having met one of several merchant seaman on a weekend pass, starting out at a nightclub where house band The Searchers jovially blast their dance-steady Beatlesque rock...
Providing the kind of source music (non-composed and heard by both the audience and characters) that'd become normal a decade later in the 24-hour spanning all-night classic AMERICAN GRAFFITI...
Alas this forerunner has a bland existential plot yet is loaded with fine British actors like Bernard Lee (despite being way too old for ingenue Erika Remberg), Nigel Green and David Lodge...
And while not crime-centered like many B&W British New Wave flicks, the best story involves Inigo Jackson seduced by and progressively ripped off by a darker club's b-girls Caroline Mortimer and Vera Day as he slowly catches on, providing the most situational suspense herein...
Meanwhile the only satisfying arc has Francesca Annis forever hooked with the handsomest of the traipsing males: all of whom should have had a wilder, more intriguing SATURDAY NIGHT OUT...
Overall this feels more like a Tuesday.