OMG I just have to say that this was one of the best moments of my life! They gave me tickets to see the mamma Mia at the premiere and this moment was the end of the movie and all the actors were dancing and having fun! Colin, my baby, was dancing like a cute dorkie #mammamia pic.twitter.com/M1iH9II761

— colin firth (@colinsfirthie) July 17, 2018