7. Sarah Jessica Parker & Kim Cattrall (Sex And The City)
Like the aforementioned Desperate Housewives stars, the four actresses in Sex And The City carried plenty of baggage and you always felt tension between a couple of them was hidden just around the corner. Sarah Jessica Parker and Kim Cattrall, arguably the show's two biggest stars, had reportedly never got on since it began in 1998, and things reportedly came to a head during filming of the first movie spin-off in 2008. There were rumours that the duo never spoke to one another on set, causing an incredibly awkward atmosphere in the process. Another one of these supposed insiders once said during filming:
"While the cast is all smiles on the outside, the level of dislike is unbelievable. No-one is having a good time on this shoot."
Considering they have spent many years working alongside one another, sometimes for 90 hours a week, it's understandable to see why they grew sick of the sight of each other.