Naomi Watts naomipissed.jpg

Well, she tried to, anyway!

Yesterday, Naomi looked beautiful and serene, showing off her little Alexander to all of her friends.

But today, she must not have felt like getting her picture taken, because after her friend tried to smash one photog's camera (and failed), she tried to repeatedly slap another camera out of another guy's hands (also failed).

Hey, I guess with all those hormones, pregnant women can get a little riled up sometimes, right?

See it all go down (or not) in the video: