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Scarlett Johansson, Ryan Reynolds Divorce: Why the Breakup?

Ryan Reynolds and Scarlett Johansson (CBS/AP Photo, file)
Dan Steinberg
Scarlett Johansson and Ryan Reynolds Make Their Breakup Official, File For Divorce In LA
Ryan Reynolds and Scarlett Johansson. (CBS/AP Photo)

LOS ANGELES (CBS/AP) Ryan Reynolds and Scarlett Johansson are officially calling it quits after filing for divorce in Los Angeles, citing irreconcilable differences.

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PICTURES: Scarlett Johansson
PICTURES: Ryan Reynolds

Court records show the actors each filed divorce paperwork Thursday.

What caused the falling out?

There is no official word yet from the two stars, but Us magazine, citing a source close to the couple, says too much time apart was to blame.

The pair announced the breakup on Dec. 14, the same date they listed in court filings as their separation date. The 26-year-old actress and 34-year-old actor were married in September 2008.

The couple kept their courtship and nuptials private, releasing few details about their wedding and rarely appearing in public together.

Johansson's recent credits include "Iron Man 2" and "He's Just Not That Into You."

Reynolds appeared opposite Sandra Bullock in "The Proposal" and stars in "Green Lantern," set for release next year.