I am a bit disappointed! I have written and researched about prosopagnosia (face blindness) for a scenario. When was this movie announced? Last time I checked I was alone on the subject. I'm still curious about the directing tricks that will be used.
I too have written about prosopagnosia. I even entered my short screenplay titled "Face Value" in the Birmingham Sidewalk Moving Picture Festival sidewrite competition and won the production prize, that was in 2006. Mine wasn't a predictable thriller hollywood script but instead focused on the protaganist just learning how to deal with her condition. I thought it an original idea but I guess I was not alone.
Well I can't speak for the finished film, but I've read the script and the actors (other than Anna) keep changing every time she sees them. She can't remember their faces so every time she meets her boyfriend and friends, they are played by different actors. Which of course causes tension in the film because since she can't remember faces, any one of them could be the killer and she wouldn't realize it. There are other things in the script like the faces in photographs changing all the time and faces on TV shows, etc. The only thing is, their voices all remain the same, which makes me wonder how they're going to pull off having different actors play the same character but all with the same voice. Either the actors will have to lip sync or they will have to dub over their dialogue--either way it seems pretty tricky and I wonder how they'll accomplish that.
I thaught most movies "dub" their voices over the actual footage to get quality sound? I mean they talk again while watching themselves on a screen to place perfect sounding voice on the film. They dont catch the sound from the mic's on the streets and use that sound in the final movie.
So its fairly easy to have one voice on several actors. Same actor give the lines while watching the other actors on the screen to sync roughly sync it. Then the editor/sound whiz takes over correcting details.
"If only you could see what i've seen with your eyes"