i just saw a preview for a movie which will contain special effects.
the actress mentioned that while in acting school there is a chapter
where mime is presented and practiced. she advises all actors to take
that course, as it encourages the imagination and portrayal of the
objects in the imaginary world. The movie she was filming had scenes
where imaginary characters were included n the scenes and the actors
had to "mime" their characters so that the special effects department could add their images in post - filming.