(Criterion/HBO MAX/kanopy/tubi/VOD) Elaine May’s exploration of two desperate NYC mobsters (Peter Falk and John Cassavettes) trying to save themselves while using each other is as good as any take on weathered, toxic male friendship as you’re going to get on film.
There are two versions of it out there, but the one streaming is May’s director’s cut which is streamlined, but far more ramshackle (see: https://jonathanrosenbaum.net/2020/06/mikey-and-nicky-liner-notes/ for more details). Watch whichever one you can wrangle!