According to papers filed in Los Angeles Superior Court, Bella filed for the divorce citing irreconcilable differences as the reason behind their split.
The couple married in April 2006 and have a nearly 3-year-old son, Ethan Page, together. Bella is seeking spousal support and joint custody of their child.
Since rising to fame in the second installment of the "Terminator" series, playing a young John Connor, Furlong has appeared in "Buffy the Vampire Slayer" and "Law & Order: Special Victims Unit."
Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Hollywood Divorces
PLAY IT NOW: Christie Brinkley & Alexa Ray Joel Talk Billy Joel Separation
PLAY IT NOW: Year In Review: Top Breakups Of 2008