Two more couples headed to Splitsville

Zac Efron & Vanessa Hudgens have broken up. A source said: 'It's nothing dramatic. There's no third party involved. They were together for so long. It just ran its course.'

Scarlett Johansson and Ryan Reynolds have separated and are soon to be divorced.

"After long and careful consideration on both our parts, we've decided to end our marriage," they say in a joint statement. "We entered our relationship with love and it's with love and kindness we leave it. While privacy isn't expected, it's certainly appreciated."

According to a source, Johansson initiated the split. The actress has started apartment-hunting in New York City and is currently in Jamaica with some girlfriends, the source adds.