Click here to get $2 off the April issue! Rachel McAdams can do drama (The Vow), comedy (Wedding Crashers), thrillers (Red Eye) and Oscar-nominated fare (Midnight in Paris) – and her look is equally versatile. Since her breakout role in 2004's Mean Girls, she's demonstrated her willingness to take risks with her fashions (and hair!), so as she graces our April cover, we thought it was the perfect time to look back at her style transformation. Pick up an issue of People StyleWatch, on newsstands and tablets now!