Brad and Angelina Let's Get Intimate ... with TMZ

Brad Pitt
and Angelina Jolie ... ACTUALLY TALKED TO US!!!

It all went down after the two had dinner at Boulevard3 in L.A. -- when BOTH superstars approached the photogs and chit-chatted it up.

Brad finally revealed why he refuses to sign autographs in blue ink ... and Angie pulled off one HUGE favor for one super-lucky fan. 

Great up-close-and-personal footage of two of the biggest stars in the world -- check it out.