Angelina Jolie -- I've Been Broken by CHICKENPOX!! (VIDEO)

Angelina Jolie's officially a scratch from all her upcoming media events ... because she's come down with a case of chickenpox.

Angelina just posted a video announcing she will be "home itching" instead of walking the red carpet Monday night in Hollywood for "Unbroken" -- which she directed. The 39-year-old says she was diagnosed Thursday night.

As for how Angie caught the pox -- she's not saying, but c'mon ... she's got 6 kids. One of those buggers must've been carrying.

This caps off a real crappy week that included leaked emails -- sent from mega-producer Scott Rudin to Sony honcho Amy Pascal -- blasting Angelina as a "minimally talented spoiled brat."

Angelina had an awkward run-in with Pascal Wednesday morning. We're not saying Angie was out for revenge, but Pascal might want to get a checkup.