Amanda Seyfried dating co-star Thomas Sadoski

Amanda Seyfried has reportedly found love with another co-star in actor Thomas Sadoski.

The Les Miserables beauty and The Newsroom star first became friends when they co-starred in the Off Broadway play The Way We Get By last year (15), but according to Us Weekly, they recently reunited on the set of their new movie The Last Word, and their relationship has since become romantic.

"Amanda and Thomas are definitely dating right now," the insider tells the publication. "She's no longer single."

Thomas separated from his wife of eight years, Kimberly Hope, in October (15).

The stars have yet to comment on the romance rumors, but Thomas isn't the first co-star Amanda has dated off-screen. She previously romanced Mamma Mia! actor Dominic Cooper from 2008 to 2013, and she most recently dated actor Justin Long, but they split in September (15) after more than two years together.

She previously opened up about what attracted her to Justin after meeting via Instagram.com.

"I followed him on Instagram, and I thought something he said was really funny," she told Vogue magazine in May (15). "It was a beautiful picture of a snail, and the caption said, 'F**king MOOOOOOOOVE.' It made me laugh out loud, so I texted him."

In the same interview, she also discussed how right the romance felt, although she hinted their busy schedules and lengthy 12 to 14-hour work days could sometimes take its toll on their relationship.