There was a movie I watched recently and I remember it was sci fi or maybe a superhero movie. It was a fairly big movie, like, well known. All I remember is a guy had a robotic arm and his friends came up to him because he was freaking out and his arm started to “engage security protocols” and tries to attack them but he wouldn’ let it. It wasn’ a big part of the movie but that’ all I can remember and it’ driving me nuts. Thanks.
Justice League (2016)? Cyborg’s arm attacks the other superheroes.
‘The Signal’ (2014) ?
http://www.imdb.com/title/tt2910814/