Gloria Monti points out:
"As somebody mentioned in an earlier posting, people in Europe don't
seem terribly concerned about this issue (a generalization, I am aware of
that). The people I spoke to in Italy were more concerned with having to
read the subtitles--and thus "missing out" on the dialogue than with having
a voice outside the actor's body speak for him/her."
Didn't Fellini deliberately play with this system? He would even have the
actors simply count off numbers during film and then use the dubbing process
to his own advantage.