Stephen Sondheim was riding pretty high in 1973. His previous two shows, Company and Follies, were both gigantic artistic successes, and everyone was waiting with baited breath for his new show, A Little Night Music. A period country house drama set mostly in waltz time, the show was Sondheim’s third consecutive Best Musical Tony Award winner, and yielded (so far) the only radio hit from a Sondheim show. Here is an excellent filming of the New York City Opera production from 1990 [2h55m].
There is scant material documenting the original 1973 production, but here are Glynis Johns and D. Jamin Bartlett appearing and performing their big solos on The Tonight Show With Johnny Carson [21m] from that year.
Hal Prince, who directed the original production, directed a motion picture adaptation in 1977 starring much of the original Broadway cast. With newcomers Dianna Rigg and Elizabeth Taylor, it’s an interesting document of this enduring show [2h].
The 1995 London revival seems to only have this YouTube video compiling a couple of media appearances by the cast [53m] as a document. Several musical numbers are performed, and Dame Judi’s rendition of Clowns may be the best one you’ll see.
Trevor Nunn directed a 2009 London revival which then transferred to Broadway with a new cast. For the truly dedicated, here are a couple of challenging (but worthwhile) audience recordings, 2009 London original cast [2h28m], and 2010 Broadway cast [2h48m] with Bernadette Peters and Elaine Stritch, amongst others.