The following may be footage of a transgendered time traveler attending the 1928 premier of Charlie Chaplin's "The Circus". George Clark, the filmmaker who discovered this ten second bit of footage takes over 8 minutes to explain that he "can't explain it." My guess is that George is not a film editor or screenwriter. Perhaps he's a special effects man.
If she's on a cell phone, who do you think she is calling? How many other cell phone users could there have been in 1928, and how powerful does a cellular tower need to be to cast service 80 years into the past? AT&T had to have charged some serious roaming fees for that call.