Liberty Ross and Rupert Sanders -- OFFICIALLY DIVORCED ... She Makes Out Like a Huntsman

Liberty Ross just scored big ... we've learned her divorce from Rupert Sanders is now final.

As you know ... Liberty filed for divorce after Rupert was caught on camera making out with Kristen Stewart, who starred in his movie, "Snow White and the Huntsman."

According to the settlement agreement ... obtained by TMZ, Liberty gets:

-- the family house
-- 2 other London houses
-- $25,000 a month in spousal support for the next 4 years
-- $14,000 a month in child support for their 2 children
-- 15% of profits Rupert gets from movies, with the exception of "Snow White"
-- half of bank accounts, retirement, etc

Ross, who was repped by disso-queen Laura Wasser, gets joint custody with Rupert.

Rupert gets to keep the Malibu beach house and a 1970 VW van.

Oh, one more thing she got ... Jimmy Iovine.