Apparently, Melanie Griffith has checked into rehab. Her rep said: "She is there to reinforce her commitment to stay healthy. This is part of a routine plan that was designed between her and her doctors years ago."

But a source close to Melanie claims Antonio Banderas threatened to leave her if she didn't stop drinking. The source claimed: "The reason Melanie checked in was her husband was demanding that she get clean and sober. He told her that if she didn't get the help she needed it would be the end of their marriage."

Another source adds that Antonio is staying by her side in helping Melanie get over her problem: "Melanie's struggling right now, but Antonio has been checking in on her as much as he is allowed, making sure she gets back on her feet."

[via Dlisted]