How is “anything but” used?

In American Beauty (1999), one line is: “A commercial for how normal we are when we're anything but.”

Which movie is “anything but” from?

The clip at the top of this page is from American Beauty (1999).

definitely not; except the thing named; after a negative, only that thing and nothing else

Heard in 40 moviesPlay Idioms

Oxford65% of films
definitely not
Editorial35% of films
except the thing named; after a negative, only that thing and nothing else

Definitions from the Oxford Advanced Learner's Dictionary, 9th edition

A commercial for how normal we are when we're anything but.

Said in 8 films · #1