I've always been a fan of long takes. Actors doing their thing, creating a miniature pie-slice of an imaginary situation for a minute or two, possibly more. Unbroken by the need to edit shots together to create the illusion of a situation, these mini-stage performances do the job as close to a 'real situation' as film can. So much can go wrong; an actor can flub a line, a camera operator can accidentally bump an object, creating an unusable shake during the shot, unwanted background noise can ruin the audio element, a prop can fail...you name it. For whatever other faults it may have had, the first season of Space:1999 had a neat habit during their conference scenes of shooting them as single takes for the most part. Question is, what was the longest take from Star Trek? The one that comes to mind for me is the mind-meld scene from The Changeling. I've never timed it, but it has to be two minutes or more. Any other candidates?