January Jones is reportedly dating director Noah Miller.

The 34-year-old actress and the filmmaker fell for each other while working together on upcoming western Sweetwater.

In the film January portrays a widow living in the 1800s who assists the town sheriff with his efforts to apprehend the man who killed her husband.

January and Noah were seen holding hands in Santa Monica this week while enjoying time out with the star's 11-month-old son Xander.

"They met on the set of the film Sweetwater," a source told Life & Style magazine.

"January's one of the stars, and Noah's co-directing with his twin brother, Logan."

January has refused to share the identity of Xander's father.

She has spoken before about her desire to establish a romance with a fairy-tale ending.

"It's not easy. I've been in some long relationships and now I'm finding myself dealing with being single and it's okay," she told the UK edition of OK! magazine earlier this year.

"It's hard to find romance anywhere, the kind of love story that carries you away I'd love that. I'm pretty idealistic when it comes to love."