WATCH: Jennifer Aniston Changes Plans (And Planes) To Avoid Ex-Husband Brad Pitt's Fiancee, Angelina Jolie (VIDEO)

In the small bubble of Hollywood, it's bound to happen one day - Jennifer Aniston and Angelina Jolie will bump into one another.

And it nearly happened this week, when the 'Friends' star and her ex-husband's fiancee were booked on the same plane from LA to London, and in the very same section of the plane - naturally.

WATCH above to find out what happened and how Jen took evasive action...

Aniston was en route to London to attend the premiere of her latest comedy 'We're The Millers', in which she co-stars with Jason Sudeikis and Emma Roberts.