PSA: both Romancing the Stone AMD Jewel of the Nile are on Hulu
The original NYT review of Romancing the Stone called it “elaborately produced, mostly charmless.” https://www.nytimes.com/1984/03/30/movies/screen-romancing-the-stone-action-comedy.html
HE ALSO HATED ROCKY!! Called it a “sentimental little slum movie.” https://www.nytimes.com/1976/11/22/archives/film-rocky-pure-30s-makebelieve.html
He ALSO hated Alien https://www.nytimes.com/1979/05/25/archives/screen-alien-brings-chills-from-the-far-galaxya-gothic-set-in-space.html
Wikipedia has helpfully collected many of the other now-beloved films he reviewed negatively including The Godfather Part II.
Anyway, this was a beloved film from my childhood, and rewatching it was a pleasant way to pass some hours as everything else grows more tense and anxious. The same is probably true of most of the films in this thread, regardless of whether Canby liked them or not at the time.