Monster-in-Law (2005) runs 1 h 41 min, is rated PG-13 in the US and averages 6.2 from 1,813 TMDB members. Office temp Charlotte Cantilini thinks she's found Mr. Right when she starts dating gorgeous surgeon Dr. Kevin Fields. But there's a problem standing in the way of everlasting bliss: Kevin's overbearing and controlling mother, Viola. Fearing she'll lose her son's affections forever, Viola decides to break up the happy couple by becoming the world's worst mother-in-law.
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Streaming availability by JustWatch. In the US, as of 2026-11-05: HBO Max Amazon Channel (subscription), Cinemax Amazon Channel (subscription), Cinemax Apple TV channel (subscription).
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