Jennifer Aniston sjpja.jpg A New Line rep has confirmed that Jennifer Aniston's big summer movie He's Just Not That Into You has been pushed back several months. That's terrible news - unless you're Sarah Jessica Parker!

An insider who spoke to Life & Style claims the schedule change was due to concerns over the mounting buzz for Parker's much-anticipated Sex In The City movie, which execs expect to tap the same market as Into You.

According to the insider, however, SJP and Jen are far from friends - and this release-date brouhaha perfectly captures the rivalry that exists between them.

"Jen was looking forward to going up against the 'Sex' ensemble -- especially Sarah Jessica Parker -- and some of the other summer blockbusters," the insider told the mag. "They've never been friends in real life, and probably never will be.”

Jen, however, isn't letting her professional enmity for Sarah cloud her opinions of her own work. "Jen's convinced her film has a superior story and more attractive cast," the insider said. "People are going to compare these movies and she doesn't regret taking part in the project. This is the script that lured her back to work after taking two years off. She's standing by her belief that it is a worthy picture."

Well, we sure can't wait to see it - whenever it comes out!