Bradley Cooper and Zoe Saldana split: Report

PARK CITY, UT - JANUARY 26: (L-R, backrow) Michael Benaroya, Bradley Cooper, Zoe Saldana, Director Lee Sternthal, Ben Barnes, Scott Shooman of CBS Films, (Front row) Director Brian Klugman, Dennis Quaid, Brian Klugman and James Babson attend the "The Words" Dinner At Acura Studio on January 26, 2012 in Park City, Utah. (Photo by Jemal Countess/Getty Images for Acura)
Jemal Countess
Bradley Cooper and Zoe Saldana attend the "The Words" dinner on Jan. 26, 2012, in Park City, Utah.

(CBS News) Bradley Cooper and Zoe Saldana have split after three months of dating, according to reports.

The actors, who co-star in the film "The Words," were first romantically linked at the end of last year, and were spotted getting cozy at the Sundance Film Festival in January.

Pictures: Celebrity splits
Pictures: Bradley Cooper

"They're definitely not together," a source told Us Weekly on Wednesday.

The magazine also quotes a friend of the former couple, who said, "She and Bradley weren't super serious at all."

E! Online reports that the pair broke up last week, and it was Cooper who called it quits.

"He dumped her, he just doesn't want to be in a relationship at the moment," a source close to the couple said.

Saldana split from fiance Keith Britton last November, after 11 years together. Cooper, who previously dated Renee Zellwegger, was rumored to have dated Jennifer Lopez last fall.