I thought that at some point an underwater movie would be a more cunning way disguising the source. A few other things occurred to me. If you had a camera a decided to fake these photos they would gave to be books or television, films that were on the telly. Actually going to the cinema and taking a snap would be risky and much more difficult.
The guy on the right looks as though he maybe an actor.
Do you know when those photos first came to light?