According to Page Six, the pair were seen having dinner together at a sushi restaurant in Manhattan on Thursday evening. A witness claimed that the Spider-Man actress looked "smitten" with Hartnett.
"They were whispering and smiling at each other," the source is quoted as saying. "At times it looked like she wanted to grab his hand, but stopped. She was especially smitten with him."
Dunst and Hartnett have previously appeared together on screen, portraying teenage lovers in Sofia Coppola's 1999 movie The Virgin Suicides.