The Home And Away alum laughed as her daughter shied away from the camera, while Stuart smiled alongside.
The family outing comes as the actress and radio host made headlines last week after admitting her 'antics' on the Kate, Tim and Marty show can sometimes go too overboard.
While speaking about a recent game of Quick Draw with Karl Stefanovic, Ritchie admitted her behaviour was 'appalling', as she is extremely competitive.
To see the adorable pictures of Kate, Stuart and Mae on the red carpet, see here.