Jennifer Aniston

The Friends star revealed last year that she was undergoing hypnosis in an attempt to cure her "extreme fear of flying", which resulted in her having to give up her superstition of tapping the outside of the plane with her right hand and stepping aboard the aircraft with her right foot.

She told Travel and Leisure magazine: "I have an extreme fear of flying. But I have been doing some hypnosis lately, and one of the requirements is to remove all of those superstitions.

"I have not been doing the right hand, right foot - and now it's shockingly good!"