Diane Keaton, Jane Fonda and Candice Bergen join forces in 'Book Club' comedy

Lara Spencer reports the buzziest stories of the day in "GMA" Pop News.
2:41 | 05/05/17

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Transcript for Diane Keaton, Jane Fonda and Candice Bergen join forces in 'Book Club' comedy
Never go down a dark road. I have movie news. So, listen up because some of your favorites are coming to the big screen starting with this amazing trio, Diane Keaton, Jane fonda, Candice Bergen and listen to the premise, they're officially signed on for a movie that I should have written "Book club," lifelong friends who take a gander at a book called "Fifty shades of grey." May be embarrassed to meet it but it ends up changing their lives in rather unexpected ways. The comedy currently in preproduction. It sounds fantastic. It is a go. And for the boys, Jeff goldblum and Danny Devito teaming up for a series that sounds great on Amazon. They're starring as an iconic music duo from the past, sure sounds a lot like it's based on Simon & Garfunkel. The premise here for this make-believe duo, it didn't end well and when they split up years ago and it probably won't be pretty when they are forced to reunite. The comedy was created and written by "Simpsons" veteran Tim long. Two good ones. Pressure. All right, have you ever felt yourself wanting to use profanity, if you will, at your elliptical machine or maybe even yourself or instructor during a hard workout? There is a new reason. New research suggests we might actually benefit from a little bit of that kind of potty mouth in the gym. It is a new study. It was a very extensive study. I looked at it. It was not three people. It was actually a real study proving cursing significantly boosted the participant's performance during difficult cycling and strengthening test, not only did these contributors work harder they felt a surge of energy when they threw out a word bomb. In other words, swearing may have the ability to blunt discomfort. Maybe not for the neighbor next to you on the treadmill so perhaps try this at your home workout. Yeah, those people at the gym who scream like that, that's not fun. No, but you know that feeling when you're pushing yourself to the limit and you might just, you know, want to say, oh darn it. I know. Shucks. Such an angel. I think that works the same way. No, got no gratification out of that whatsoever but on the gridiron did you ever -- We would never curse at each other. What is wrong with you?

This transcript has been automatically generated and may not be 100% accurate.

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