Kate Beckinsale has allegedly split from Len Wiseman

The British actress, who married the director in 2004, reportedly secretly separated from him several months ago, but they remain on good terms.

A source close to the duo told PEOPLE.com: "They are still friendly and spend time together in L.A. when Kate is there. There has been no drama.

"It's just not Kate's style. They have both had complicated schedules and have grown apart." 

A spokesperson for the pair, who have both regularly been photographed without their wedding rings in recent months, has yet to comment on reports they are no longer together.

Rumours first began swirling the 'Underworld' star's marriage was on the rocks earlier this year, and Len, 42, has been spotted partying with 24-year-old model CJ Franco several times in the past month.

Another source said: "[They] have a genuine connection based on a friendship."

While the filmmaker appears to have moved on, both he and Kate, 42, are determined to protect her 16-year-old daughter, Lily, with former partner Michael Sheen.

The source added: "Kate is not dating and only focused on her daughter and work. [Len's] primary concern in all of this is Lily. He loves his stepdaughter and is there for her."