Sean Penn falls-out with Naomi Watts over Scarlett Johansson?

Sean Penn has fallen out with his old pal Naomi Watts, according to reports.

Britain’s Now magazine claims Penn has cut Watts out of his life because she warned him about the pitfalls of dating young actress Scarlett Johansson.

“He’s shut Naomi out of his life,” a source said.

“She’s very sad about it all.”

Recent reports claimed Scarlett has been moving her clothes into Penn’shouse in Malibu, California.

“She’s at his house most nights and has been accepted by his teenage sons,” a source said.

“Things have moved at a fast pace and both feel they have found their perfect match.”