We all know that awkward moment when you run in face to face with your ex-husband's current wife. Australian actress Nicole Kidman met Katie Holmes and they completely ignore each other.

Hollywood is a small town and you can expect to run in with your enemies. That is what happened to Katie Holmes when she met Nicole Kidman at the Soho House in Los Angeles.

According to Life & Style, the two just ignored each other's presence with Katie desperately avoiding eye contact with the Award-winning actress who divorced Tom Cruise in 2001.

An eyewitness said that the two experienced an awkward moment and did not even say hi or any form of courtesy to each other.

"when Katie walked upstairs to the lounge, she saw Nicole and immediately looked away like she was trying very hard to avoid eye contact with her. It was like she was taken off guard -- it was like a standoff!" says a witness to the incident.

When Katie saw Nicole in the lounge area, the sweet 'Dawson's Creek' actress stormed out of the room and went to the patio. People who witnessed the scene were in shocked of how rude the star was.

Katie is living with Tom and Nicole's adopted children Connor and Isabella and their biological daughter Suri. While Nicole is now happily living with partner Keith Urban and their two daughters.

There were plans that Nicole and her brood will be staying in Sydney for a year and are arranging various professional commitments. Keith Urban will be one of the judges of the Australia's version of The Voice.