Actress Kate Bosworth is set to tie the knot with her director fiancé Michael Polish at the end of this month.

The 30-year-old Big Sur star has agreed a deal with bridal magazine Martha Stewart Weddings, following in the footsteps of fellow actors Blake Lively and Ryan Reynolds.

Bosworth, who has been dating 42-year-old Polish since 2011, has openly spoken about how she believes he is the "soul mate" she had always dreamed of being with.

She said: ''I had forgotten my ideal relationship. When I go home to my childhood bedroom I see all the quotes I wrote about meeting a soul mate.

"Just through growing up and having relationships that didn't work I forgot that side of things and it became about, 'How do we make this work?' When I met Michael all of that magical side of believing in a soul mate returned.

''I'm really grateful because I believe it's rare. I believe that we're two people who have found their way though difficulties in life, unpacked their baggage and realise it's the same baggage.''

The couple got engaged in August 2012 and Kate revealed the news of her relationship status update in a travel diary during a trip to South Korea.

She wrote: ''On our first day in Seoul, my fiancé . . . and I ventured out to discover Changdeokgung Palace.''