#BREAKING: ANGELINA JOLIE files for Divorce from Brad Pitt!

Angelina Jolie has filed for divorce from Brad Pitt and the trigger was a conflict over the kids... TMZ has learned.

Jolie filed legal docs Monday citing irreconcilable differences.

She's asking for physical custody of the couple's 6 children.  She is asking the judge to give Pitt visitation.  It's significant ...she does not want Brad to have joint physical custody ... only joint legal custody.

Sources connected with the couple tell us ... Angelina's decision to file has to do with the way Brad was parenting the children ... she was extremely upset with his methods.

READ MORE AT TMZ