What About Bob was a hilarious movie! There were several scenes where language was blurted out. ( if these scenes were fast-forwarded, 7+ ) One of my favorite family movies!
I'd say that this movie is appropriate for 10 and up. Weird situations, iffy language, and things that young kids wouldn't understand. Lots and lots and lots of slapstick, so just be aware. However, I did like the movie.