Actually...it wasn't like a movie at all...It was like the eppy from Season 1 of Lost: "Born To Run". This isn't the first time TPTB visited a "poisoned" Lostie storyline.
Back in Season 1...Michael fell ill right before the big raft trip...and it was a big "who done it" eppy. Was it Kate...jockeying for Sawyer's slot? Or was it Sawyer...jockeying to assume the leadership away from Michael on the raft?
When in reality...it was Sun trying to poison Jin...so that he would be too sick to leave her behind. But Michael & Jin got their water bottles mixed up...and Michael got the non-lethal dose.
If you have that eppy on DVD...I recommend you go back and watch it again...I think the writer's missed an opportunity to insert Nikki into that scene for Expose...
overhearing the poisoning of Michael storyline...It could have been the thing that gave her the idea to toss a poisonous spider on Paulo. But they probably couldn'ty get Harold Perrineau back to shoot the revised scenes.
I believe Sun used a poisonous plant from her garden...Nikki used a spider...I wonder what TPTB will use next?