Continuity mistake: When Will and Grace sneak into Val's apartment to look for the music box, the number on the door is 12E. However, in Season 1, 'Grace Replaced', when Val and Will are talking in the elevator, she says she moved into 15F.
Continuity mistake: When Grace and Val sit and watch TV on the floor, between shots the wine bottle moves and a cork appears in the top of it. (00:24:40)
Continuity mistake: When Karen is laying on bed, looking at the leaflet Jack gave her, between shots her martini swaps from her left to her right hand. (00:26:40)
