Their split hit headlines around the world. But on Saturday Arnold Schwarzenegger and Maria Shriver put their differences behind them as the family reunited to celebrate the former Californian governor's 64th birthday. Wearing a pretty tan dress, Shriver was seen arriving at the Beverly Hills venue for Schwarzenegger's birthday. However, it is not clear if she was just there to drop off her two sons, Patrick and Christopher, or whether she stayed for the celebrations. Schwarzenegger looked smart in a pair of tan trousers and black top as he spent time with his sons in California. Earlier in the day, the former actor took to his bike to go for a ride around Santa Monica, California with a couple of friends in a low-key start to his special day. Dressed casually in a white T-shirt and grey shorts, the father-of-four looked like he has been taking his stress and frustration out at the gym and looked in pretty good shape. In the past few months, Arnold has gone from an outgoing political figure ready to resurrect his acting career to a cheating husband emerged in scandal. Meanwhile, although his popularity has waned in the US his home country of Austria still love him. A small museum has opened in the town he grew up in that is dedicated to his career as a bodybuilder, actor and former California governor. The father-of-five will not be there for the opening but a grand event will be held at a future date when he can attend. MO