Natalie Portman as ‘Emma’ in No Strings Attached (2011). Natalie Portman makes ‘Emma’ feel like a real person — independent, emotionally guarded, and secretly afraid of letting someone get too close. Her chemistry with Ashton Kutcher gives the movie its charm, especially when their supposedly casual relationship starts becoming something deeper. Her expressions often say more than her dialogue, particularly when Emma realizes that keeping her heart protected might cost her the connection she secretly wants. Beyond the comedy and romance, Portman captures the uncomfortable transition from pretending not to care to realizing someone matters more than expected.