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OTRC: Sandra Bullock reunites with Ryan Reynolds at 'The Change-Up' premiere - Photos

Sandra Bullock surprised her "Proposal" co-star Ryan Reynolds at the premiere of his upcoming film "The Change-Up" on Monday in Westwood, California.

Bullock walked the red carpet and even took a few photos with Reynolds. The 47-year-old actress wore a black strapless jumpsuit while Reynolds, 34, was clad in a dapper suit. Check out more photos from the premiere here.

Back in January, the two actors rang in the New Year together in Texas, but spokespeople for both denied the pair was romantically involved. Bullock and Reynolds have been friends for over 10 years.

Bullock announced in January 2010 her plans to divorce James, who has since admitted he cheated on her. Their divorce was finalized the following June.

Reynolds and Scarlett Johansson, 26, filed for divorce in December after two years of marriage. The divorce was finalized last month.

Bullock and Reynolds are set to team up once again in the film "Most Wanted" but the actress told E! News back in March that the project is still in the development stages and could be "eight years down the line."

She recently filmed "Extremely Loud and Incredibly Close" with stars Tom Hanks and John Goodman. It is based on the 2005 novel by Jonathan Safran Foer and is set for release in 2012.

Bullock is currently filming "Gravity," a 3D thriller about a woman stranded on a space station, which also stars George Clooney.

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