Amanda Seyfried is reportedly now dating Justin Long. The two are taking it slow and seeing if their blossoming relationship becomes stronger.

The Lovelace star, 27, stayed close to Long at a July 30 event for the film, where a source says the two were “inseparable.”

"Justin came alone and stayed close to Amanda all night," a source told Us Weekly. "They weren't making out or anything like that, but they were just inseparable during the event. He hung out when she talked with others."

The 35-year-old Long, who previously dated Drew Barrymore, took to Twitter on Aug. 10 to gush about Seyfried’s role as Linda Lovelace:

An insider continued, "Justin is super private about his relationships, [so] I'm not positive how they exactly met, but they've known each other for a while, when they were seeing other people," adding, “They recently started hanging out more, going on date-like activities. They're both busy … but they're seeing where it goes."

Seyfried was most recently linked to Dexter’s Desmond Harrington. She dated Dominic Cooper for three years before calling it quits in 2010.

image: NBC