Maria Shriver joined Arnold Schwarzenegger to celebrate his birthday in Beverly Hills, California, on Wednesday

It was one of the wet fierce and open parts in big name history, yet it appears to be all that is presently dim water under the scaffold.

Setting the standard for forgive and never look back, Maria Shriver joined Arnold Schwarzenegger to praise his birthday in Beverly Hills, California, on Thursday.

The exes looked a long way from alienated as they touched base at the extravagant Montage Hotel to stamp the activity star's 68th birthday.

The previous couple were joined by Arnie's kids - Katherine, Christina, Patrick and Christopher - for celebratory lunch.

Not going along with them it showed up was the Terminator's better half Heather Milligan or Arnie's adoration youngster Joseph Baena.

It was disclosures that the film star had fathered Joseph with the family's servant that prompted the split between the on-screen character and Maria.