Australian-born Montgomery also has a 6-year-old son, Jackson, from her previous relationship with actor Adam Kaufman.
An onlooker at the Hollywood event tells the publication, "Poppy looked really in love.
She held his hand and seemed content." The new couple reportedly met at an event in Puerto Rico.
While staying with two friends of her brother's, a persistent Montgomery contacted Bob Mc Gowan, former agent of Julia Roberts, every day – and she didn't stop until he took notice.
The daily contact finally paid off as Mc Gowan signed her.
She also played supporting roles in such films as "Devil in a Blue Dress", "Dead Man on Campus", and "The Other Sister".
Growing up in her native town in Sydney, Montgomery had an obsession with Marilyn Munroe from the age of 12.
The new parents wed earlier this year (14) after three years of dating.
Poppy Montgomery, one “Unforgettable” actress, is a new mom as of Monday, when she and boyfriend Shawn Sanford welcomed their first child together.
Poppy Montgomery net worth and salary: Poppy Montgomery is an Australian actress who has a net worth of million.