Newly-single Kate Beckinsale flashes her bare wedding finger at Theatre Awards in first public appearance since 'marriage split'

PUBLISHED: 20:51, 22 November 2015 | UPDATED: 23:28, 22 November 2015

It's only been a few days since it was reported her 11 year marriage to director Len Wiseman had ended.

However, Kate Beckinsale looked far from heartbroken as she put on a stunning show at the The Evening Standard Theatre Awards in partnership with The Ivy on Sunday night.

The mother-of-one, 42, showed some skin in a flowing green patterned halterneck dress and platform heels as she arrived at The Old Vic in London's Waterloo.

Putting on a brave face: Kate Beckinsale made her first public appearance since reports her marriage had broken down at the Evening Standard Theatre Awards on Sunday night

Although the actress is yet to confirm the end of her marriage, she wasn't trying to hide her bare left hand, noticeably missing her wedding ring.

After her husband Len was pictured on a series of outings with model CJ Franco in recent weeks, a source confirmed the pair were estranged.

'They have both had complicated schedules and have grown apart,' a source told People on Friday, adding that there was 'no drama' with the separation.

Single? The mother-of-one showed off her bare left hand - noticeably missing her wedding ring

The insider insists they are still on 'friendly' terms. A spokesperson for the actress is yet to comment.

Despite the lack of ring on Kate's fingers on Sunday night, she often doesn't wear the jewellery at all, having even been spotted ringless when she was last pictured with Len back in June.

When she was spotted without her wedding ring back in 2006, she was forced to deny speculation her marriage was on the rocks.

Parting ways: News of her split came after her husband Len was pictured on a series of outings with model CJ Franco in recent weeks

Greeting the fans: Kate happily signed autographs for fans who waited in the cold outside the Waterloo theatre

Despite the lack of ring on Kate's fingers on Sunday night, she often doesn't wear the jewellery at all, having even been spotted ringless when she was last pictured with Len back in June

Kate is usually based in Los Angeles where she lived with her husband and her 16-year-old daughter Lily, whom she shares with fellow actor Michael Sheen.

Len was previously married to a kindergarten teacher named Dana, but divorced her shortly after meeting Kate on the set of Underworld in 2002 - with the film coming out the following year.

At that time the English star was in an eight-year romance with Sheen, which subsequently ended during the movie's production.

Kate and Michael revealed their split in early 2003, with the actress getting engaged to the director in June that year and marrying in Bel Air a year later.

Back on the market: Kate tied the knot with Len is 2004 after a whirlwind romance

In a 2008 interview, Kate insisted she didn't start dating Len until after she split from Welsh actor Michael.

She said: 'It was one of those things that was happening but that we tried to pretend was not happening for a long time. Len and I were both with other people at the time, and the whole thing was really difficult.

'We made the film, and it wasn't until after it had finished that it finally dawned on me how much I liked him. I knew within five minutes of kissing Len that I would marry him.'

Meanwhile, Michael was quoted as saying of his split with Kate: '(The situation was) obviously not easy. I never felt like anything had gone on behind my back.

'Len is a really nice man and treats Lily really well and is a wonderful step-father to her.'