I think its over rated.

Rating: 5/10 (18 July 2004)

I think this movie is a great example of the double standard used to rate movies. Its obviously got a great cast, and has its moments, but there's no way I see this as the "number 1 comedy of all time" or "the #11 movie" as shown in IMDb.
I think (and this is really true with some foreign films) that sometimes the director's reputation or the prior history of some of the stars, creates a bias. And once a movie gets over rated, its nearly impossible for the collective public to reverse that impression.
I think that "old boy" system works both ways....under valuing some films by new directors, as well as grossly over rating films by old timers.
Back to this movie specifically....there are holes in the plot you could drive a truck through, and many of "the gags" are worth a smile at best. Not a single belly laugh in the entire movie.
But then, according to our ratings, the only comedy rated above Some like it hot, in the last 45 years, was the movie Jim Carrey made in 2004, that was in and out of the theaters in 15 minutes. (Eternal Sunshine of the Spotless Mind).
Personally I laughed my butt off in Airplane the first time I saw it, and every time I see "Trains, planes and automobiles," and neither of those are even in the top 50, comedy wise.
Often I think, that despite 45 years of studying cinema, including university level courses in cinema theory/appreciation, that there's just more to their evaluation then I understand.
Watch it....but keep the expectations to a minimum and you might just enjoy it.