Others who crammed into the snap that emulated the Academy Awards selfie were The Wire star Dominic West, Jools Holland and Vernon Kay.
Mrs Collins was triumphant after she whipped out her smart phone to take the picture at the VIP bash at the Odeon in Leicester Square.As the celebrities clapped after the selfie was taken, the glamorous actress and author said: "We got it. If they can do it at the Oscars we can do it here."
Mrs Collins tried to encourage Prince Charles to pose in the photo, which was posted on her Twitter, but he walked away before it was taken.
She added: "He said 'what a good idea' but wasn't in the picture."
TV stars Ant and Dec hosted the Celebrate Success Awards which honours young people who have turned their lives around with help from the Trust.