Style shrinks: Is it a dress or a skirt gone mad? Rosamund Pike is too smiley to care...

Snazzy smock: Rosamund Pike steps out at the Palm Springs International Film Festival Gala (Rex Features)

The make-up

Rebecca Gonsalves: You know what makes lipstick look great? Smiling. Such a natural beam is a rare sight on the red carpet. More of this in 2015, please.

Mike Higgins: Quite right. No point wearing a one-person tent on a big night out if you're going to look miserable about it.

The hair

Rebecca: Slicked back a little severely for my tastes – brushing the Elnett hairspray out a bit to create a less crispy finish would have been a more modern approach.

Mike: Next time I'm at the barber's, I'm going to take the tonsorial plunge and ask for a crispy finish.

The dress

Rebecca: Dammit! Why didn't I think of using the discarded mountain of Christmas wrapping to create a snazzy smock capacious enough to hide my festive indulgence?

Mike: It's a skirt with ideas above its station. Not really a look so much as a regime change.

The shoes

Rebecca: Let's hope she hasn't her 'Gone Girl' character's resourcefulness – or homicidal tendencies – as these sandals could literally be killer heels.

Mike: Peerless toes – behind feet such as these is a pedicurist of rare majesty.