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Jennifer Aniston knows a thing or two about going through a bad breakup. At the Tribeca Film Festival last week, Will Forte gushed about how co-star Aniston had his back on the set of their currently untitled Elmore Leonard project, which they recently shot in Connecticut.

"I was going through a breakup at the time and she was so giving and really helped me through it," the 42-year-old former "Saturday Night Live" star told omg! "I cannot say enough good about her."

PHOTOS: Jennifer's on-set PDA

In his upcoming film, Forte plays a criminal who helps kidnap a jilted housewife (Aniston). Though the actor kept the identity of his ex a secret, he did offer plenty of praise to his co-star.

"She was just a fantastic person," he said. "She was a delight to act with as much as a delight to get to know."

PHOTOS: Jen and Justin's sexy vacation album

While Forte recovers from his split, Aniston, 44, is currently planning her wedding to Justin Theroux. The couple became engaged in August 2012, but don't appear to be in a rush to get down the aisle.

At the April 16 premiere of Lifetime's "Call Me Crazy," Aniston told "E! News" that she hasn't picked out a wedding dress yet. "No, no, no," she said.

PHOTOS: Jen and Justin's matching style

And her good friend Chelsea Handler is helping her keep her plans a secret. "She doesn't consult me about her plans," Handler told Katie Couric on March 8. "I'm sure I'll find out about it when it's about to happen, like a last minute thing ... for privacy issues."


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