William and Kate got into the spirit of things when they attended the screening of David Attenborough's Natural History Museum Alive 3D on Wednesday evening.
The fun-loving new parents laughed as they put on the black 3D glasses to watch the movie.
Kate Middleton, 31, who has been Patron of the museum since April 2013, wore a stunning black lace gown by Alice Temperley for the evening.
The thrifty fashionista wore the same dress to the royal premiere of War Horse last January. Click link for full post from Hello Magazine.