Mila and JUSTIN TIMBERLAKE were being interviewed by Fox News for their upcoming flick "Friends With Benefits". . . and Justin put the hard sell on her, saying, quote, "You need to do it for your country."



--Mila said, quote, "I'll go.  I'll do it for you."



--Then she asked Justin if he was going, too.  He replied, quote, "They don't want me!  They want you."