7) Ryan Gosling and Rachel McAdams

The Notebook's romantic chemistry hid the real-life friction between Ryan Gosling and Rachel McAdams. Director Nick Cassavetes revealed that Gosling once requested that Rachel McAdams be replaced. Ironically, their heated arguments improved their performances on screen. When they started dating after filming, this rocky start highlights how professional conflicts can evolve.
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Edited by Sarah Nazamuddin Harniswala