This is really bizarre! Documentary material that accompanies a video release of the 1928 Chaplin film The Circus includes a lady walking past the camera, who appears to be talking on a cell phone.
it’s real footage and it features real members of the public in 1928. Or does it, asked Clarke, who spotted a mysteriously dressed stranger walking past the camera talking into what he says can only be a mobile phone.
I very much doubt that anyone in Hollywood had a mobile phone in 1928 — where were the cell towers? Still, the scene on video (link below) looks amazingly like a cell phone in use. Perhaps a really small walkie-talkie?