Cameron Diaz, Chace Crawford Know 'What To Expect When You're Expecting'

Stars share the strangest pregnancy facts they learned during filming.

As if the film's title weren't explanation enough, "What to Expect When You're Expecting" is all about what couples experience during pregnancy, based on the best-selling nonfiction book of the same name.

Because the subject is a complex, loaded and almost universal one, when MTV News sat down with the castmembers from the film, we asked them to enlighten us with the most unique facts they learned about pregnancy during production.

"I think the weirdest thing I've seen — I've actually seen it — is a woman getting on her hands and knees giving birth," Matthew Morrison said. "It's interesting, because you think about a woman [lying on her back] and pushing, but honestly, if you let gravity do the work, it makes it a little easier."

"The squat position, there is a purpose for it — not just to lift the butt and tone the quads," added Diaz, who plays Morrison's girlfriend and baby mama in the movie. "But to open the hips and pelvis and let gravity do the work. The only reason a woman is on her back in our culture is so the doctor can see what's going on. I say get a platform, squat over it, let the doctor be underneath it."

"If you want the baby to come right now, eat spicy food," Ben Falcone ("Bridesmaids") said of one tip he'd heard mentioned that might speed up delivery.

"Have sex," said his onscreen wife, Elizabeth Banks.

"Sprint," Falcone joked. "Sprint uphill."

"A lot of running is encouraged," Banks continued with a smile. "Slam doors. Get surprised. Surprise her, scare her."

Chace Crawford and Anna Kendrick provided the most to-the-point advice, but because their characters have to deal with an unplanned pregnancy, their words of wisdom were how not to get pregnant in the first place.

"Wrap it up. That's what we learned on this shoot," Crawford said of practicing safe sex with the use of condoms. "Right?" he asked Kendrick, who collapsed into a brief fit of giggles. "Never mind."

"Sorry. You completely lost me," Kendrick laughed, before regaining composure. "Yeah, wrap it up to avoid pregnancy. And stay away from Chace Crawford; he's irresistible."

Check out everything we've got on "What to Expect When You're Expecting."

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