Diane Kruger and Joshua Jackson

Diane Kruger and Joshua Jackson

Joshua Jackson and girlfriend Diane Kruger are "close" to getting engaged.

The pair have been together for seven years and have always previously claimed marriage was not for them as neither are religious, but friends say they have had a change of heart.

A source told Us Weekly: "Josh and Diane are very close to getting engaged.

"They decided they're ready for the next step. They're excited."

The source added the plan is that Joshua - who celebrated his 35th birthday on Tuesday (11.06.13) - will propose this summer with the wedding happening soon after.

However, if they marry this summer, the couple will have to find time to fit it around Diane's busy acting schedule. The 36-year-old actress has been filming US drama series 'The Bridge' and is also set to star promote her movies 'The Green Blade Rises' and 'Me, Myself and Mum', both of which are set for release in 2013.

Diane was previously married to French actor and filmmaker Guillaume Canet from 2001 to 2006.