'The Other Woman' Cast's Guide to (Not) Cheating

Kate Upton and Cameron Diaz tell us how to maintain fidelity.

How easy is it to avoid cheating on your significant other? Though most of us would say, "pretty easy," the answer isn't as obvious as you may think — at least according to the cast of the new comedy

"The Other Woman."

"Everyone goes through a betrayal in their life," Kate Upton, one of the movie's stars told MTV News, "whether it's from a friend, or family, or boyfriend."

The film sees a trio of actresses — Upton, Cameron Diaz and Leslie Mann — discovering that they're each being cheated on by a handsome New York businessman played by Nikolaj Coster-Waldau. And these three very different ladies begin to bond with one another, despite the cheating.

It's a premise that might not work as well if three guys were involved, according to actor Taylor Kinney.

"If your girl's running around, my buddy's not gonna be the dude she's running around with," Kinney joked.

And Coster-Waldau just doesn't think guys would be able to pull off the kind of payback the ladies are able to achieve in the film.

"I don't think guys would be that creative," Coster-Waldau said.

So what if the worst happened and your significant other messed around? In the film, when the three find out that each is "the other woman" in their man's life, they decide to hit him where it hurts: his wallet.

In real life, though, there are other options than revenge.

"Booze," Mann joked about how to deal with a cheater.

"Boozin' it with the girls," Diaz chimed in. More seriously, the star suggested that the jilted should, "Just walk away. In my wiser years, I know now you just walk away."

That doesn't mean you can't get some creative revenge while you're walking away.

"Wear some tight pants," Upton joked. "Change your number, don't give them a chance to explain themselves."

"[I would] do something good with my life," Diaz continued, adding "After I sobered up."

"The Other Woman" is in theaters April 25.