How do you pronounce Scarlett Johansson ?

Well, if you desire to pronounce her Danish last name correctly, it
would be: "Yo-huns-sonn".

Scriptor

Apparently the "extras" on the DVD of "American Rhapsody" guve a
pronunciation of 'Yo-hansson':

"Extras include the original theatrical trailer and a full-length
commentary by Gardos (sounding an awful lot like Lorraine Bracco) with
friend/co-producer Colleen Camp in which they often mistake clichés
for innovation. (They seem to think that An American Rhapsody is the
first film to depict teenaged characters who underestimate their
parents' struggle.) One thing I did learn from them: Johansson (as in
Scarlett Johansson) is pronounced 'Yo-hansson'."

http://www.filmfreakcentral.net/dvdreviews/americanrhapsody.htm

Oops. In my first sentence above, 'guve' should be 'give'.

Thanks. :)