Corrected entry: The scene in which Alex Murphy's arms are blown off and he's shot through the head was accomplished using a lifelike prosthetic puppet in the likeness of Peter Weller that could move its face to look like it was "screaming."
Jedd Jong
21st Mar 2009
Correction: That is an incredibly common special effects technique. To be trivia it would need to be something unusual or different than what would be expected. Prior to CGI, all films would have used a similar technique.