I'm guessing it was Blade, although I honestly have no idea any more.

Probably Terminator or Terminator 2. Memories of youth be hazy yo.

RoboCop or Predator, 1987 was a hell of a year

Too early for me to remember, honestly. It was during the time when toddlers first start forming memories. :lol

Jeepers creepers was my first one I can clearly remember watching

Out of technicality: The Patriot, but we were watching it at school so it was an edited version.

My actual first R-Rated movie: The Punisher (2004).

EDIT: Ok. I know it was a Marvel movie, but when I was a kid, I saw a little bit of The Punisher, so I didn't see the full movie. The first non edited R-Rated movie that I saw was The Wolverine (Director's Cut). Wait.... that was an "Unrated" version...... It is either The Wolverine or Daredevil.

now i'm confused

Stripes. Saw it with my dad, either on VHS or HBO, when I was... I don't know, seven-ish? I mostly just remember the military Winnebago of awesomeness and lots of boobs.

Scream. My parents would not let me watch R rated movies until I was 15. Of course, at the same time though, that makes it that my brother was 11 when he was allowed to start watching R rated movies...

I honestly don't know. My father or grandfather would take us to see things like 'Under Siege' as long as I can remember. Usually they would have previewed it in case there was nudity and then told us to cover our eyes. Mass amounts of violence and swearing we fine just as long as they didn't have to confront nudity lol. I'm guessing the first R rated film I saw was likely around the age of 5-6 but I have no idea.

Jaws was PG.