Amidst all of the events, the stunning actress appears to have gone for a quick dye job in between premieres to boost her locks' glossy colour.
Katie first attended the premiere for Boulevard, choosing a casual outfit of dark grey jeans and ankle boots for the red-carpet event. However, it was her hair that caught fans' attention, as they remarked that her usually bouncy locks appeared slightly dishevelled in loose curls and a wispy fringe, with gray hairs appearing.
However, the 35-year-old wowed on the red carpet the following evening when she stepped out with glossy brown hair for the premiere of her own film Miss Meadows, prompting speculation that she had dyed her hair in between the two events.
Katie oozed glamour in a sleek maroon off-the-shoulder gown by Zac Posen, which she paired with some gorgeous matching stilettos. The designer himself accompanied Katie, and the two were seen laughing warmly throughout the night.
Katie with designer Zac Posen