Colin Firth and his wife, producer Livia Giuggioli, attended the Mamma Mia! premiere in London, and while he looked dashing and dapper, as always (seriously, Colin -- call us!), we're having a bit of a struggle handling Livia's get up.

We were perfectly ready to completely trash it because, come on, it's a bright yellow sequined smiley face dress for crying out loud. However, the film does celebrate the 70s (the era in which the smiley face came to be), so we decided to cut her a little slack. But then we saw the back, and we're not so sure that slack can be cut. What do you think?