The Boys (1962)
Broke my rule of sticking to films no later than the 1950s, because TPTV made a lot of fuss of this, with also an interview with one of the stars (still alive!), ex minor pop star/actor Jess Conrad. Also not keen on courtroom drama films, but this did have a huge cast of well known actors and a lot of the story was shown from different viewpoints around not quite yet swinging London in the early 60s.
Good story of four yobs (or were they) who rob (or did they) a garage, during which the night-watchman (very prevalent in those days, not so much now) gets viciously stabbed to death.
And speaking of the garage scene, for a few seconds I couldn't figure out why the calendar on the office wall in the garage was noticeably out of focus - then, of course, the penny dropped with TPTV "censoring" anything iffy in the way of nudity. FFS, is anyone going to be offended by an innocuous nudie photo on a calendar in the background,. :@
As I say, a lot of well known actors too numerous to list here, so you can check them out if you like on the IMDb............. https://www.imdb.com/title/tt0054697/?ref_=fn_tt_tt_13
Good film and well worth a look.