Gwyneth Paltrow has stunned fans by aiming a foul-mouthed rant at her late grandmother during a TV interview.

The actress recently made an appearance on Chelsea Handler's talk show and opened up about her strained relationship with her maternal grandma, calling her  "a real c**t" and "mean as hell."

During the interview, they both discovered they had German grandmothers they called "mutti" and Handler branded her relative "a real b**ch," while Paltrow replied, "Mine was a real c**t."

The word was bleeped out for U.S. TV viewers.

Paltrow went on to explain, "She just hated my guts and she tried to poison my mother against me. She must not have been very happy and must have had a lot of pain because she was as mean as hell."

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