Q : Blowup(1966)

I got a question.

When the Blowup beginning, the intruducion title(actor : ----) has the
movie.
What's that?

We can little watch the actor.

I think that actor in subtitle, the director(antonioni) show a little
information about the movie.

Please, answer it..

If you visit the below link, you can understand my question.

http://outnow.ch/Media/Img/1966/BlowUp/?i=dvd%2Efilm%2F01%2Ejpg&w=720&h=405