Julia Roberts is not happy with her pal Julia Stiles. Both Julia’s have worked together in the past and have gotten to be friends. That is, were friends until Stiles latest stunt ticked Roberts off.

More pictures of Julia after the jump…

Roberts has become a big eco-friendly person. Stiles decided to have fun and mock some celebrities eco enthusiasts. From the National Enquirer:

 Julia Roberts- a famously eco-conscious mother of three who uses flushable diapers, drove a Toyota Prius and even helped invent a “green” household cleaner – isn’t laughing at her former Mona Lisa Smile’s co-star’s joke.

“While Julia thinks Julia Stiles’ heart is in the right place, she shouldn’t make fun of others who are trying to help the environment,” said the source.

“Julia thinks her former co-star would be better off directing her humor at people who are trying to destroy the planet… not those helping it!”

 Roberts does have a point. But where did her sense of humor go? There are some big hypocrites who appear over the top eco-friendly, but have 12,000 square foot homes to heat and cool. Lighten up Roberts!

Photos: Bauer Griffin