Actor Michael Douglas' mother says that her son and actress Catherine Zeta-Jones have resolved their marriage issues.

Diana says the two are now firmly back together and over their marriage woes, reports contactmusic.com.

"They are together. I knew they would work it out. They're both gentle people, not hysterical. They're always very affectionate and easy with each other. I figured the more everybody stayed out of it the better," she said.

The couple had separated last year in August after being together for 14 years.