Rachel McAdams [1] was positively glowing when she stepped out for the Tribeca Film Festival [2] premiere of her new movie, Disobedience, on Tuesday night. The 39-year-old actress looked gorgeous in a sheer Giambattista Valli gown [3] and was joined by her costar Rachel Weisz [4], who's currently expecting her first child with Daniel Craig [5]. To make matters even more exciting, the event also marked Rachel's first red carpet appearance since becoming a mom.

Rachel has been dating screenwriter Jamie Linden [6] since 2016, and the two reportedly welcomed their first child [7], a baby boy, earlier this month. No other details have been released at the time.

Congrats, Rachel!