Classic. Funny. Old, but still good.
I think I have watched this movie every time it was aired on a Danish TV channel together with my parents when I was a kid. It is good entertainment and quite an impressive cast.
My favorite characters from the movie are the ones played by Dean Martin and Roger More. As this is a hilarious old school comedy, a lot of the acting is slightly over the top. If a new movie applied the same acting style, I am not sure I would even watch it, but as this is a classic and has a lot of sentimental value for me, I do not think that this is the last time I have seen it.
