A scene from a 1928 silent film premiere has sparked claims that it contains evidence of time travel caught on camera.
The footage from the premiere of Charlie Chaplin's The Circus shows a woman walking in the background who appears to be talking on a cell phone.
Irish filmmaker George Clarke has posted the clip on YouTube after he "discovered" the footage in the extras of a Chaplin DVD boxset. (Watch the clip below)
In his posting Clarke said he has examined the footage closely for over a year and has screened it to an audience of approximately 100 people at a film festival.
Clarke said he can find no explanation for what the woman is doing other than talking on a yet-to-be-invented cell phone.
Clarke cited the way in which the woman's hand is held as evidence that she is holding a phone to her ear.
Clarke said the only conclusion that he could come to was that the woman is a time traveller.
He acknowledges that his claim sounds "absolutely ridiculous" and calls for anyone with an explanation to reply to the posting.
Clarke does not speculate on who the woman might be talking to.
However he does suggests that the woman may actually be a man in drag.