"I'm quite particular," Lopez said on a recent afternoon in Los Angeles. "I've been offered a couple of movies over the past couple of years but unless it's the right thing and I get the right types of opportunities, I'd rather create them. That's mine and Elaine's mantra. We don't force things, but we don't wait around either ... If no one is giving us the stories that we want to tell, then we'll create them ourselves."

Elaine is Elaine Goldsmith-Thomas, Lopez's longtime friend and producing partner who've worked together on projects like "The Boy Next Door" and "Shades of Blue." ''Second Act," which hits theaters nationwide Friday, was her idea. She thought that Lopez would be the right woman to play the 40-year-old big box store worker with business savvy but no degree who gets a chance to prove herself to Madison Avenue's elite. A little bit "Working Girl," a little bit "It's A Wonderful Life," it was right up Lopez's alley.

"We're stuck on these movies because we know, we grew up on them and we know. They're necessary. People need inspiration. They need to believe in a fairy tale," Lopez said. "I think that is the evolution of the romantic comedy. It's not so much about falling in love with Prince Charming, it's about falling in love with yourself and your life and realizing that you have to be the love of your life."

Lopez, 49, said she even cried describing the story in a pitch meeting to STXfilms Chairman Adam Fogelson ("Our great champion," she said), who agreed on the spot to make the movie.

"(He) believes in these types of movies and believes in women producers," she said.

They signed on a director, Peter Segal ("50 First Dates"), carved out some time in Lopez's busy schedule ("I literally think she's the busiest person on the planet earth," Segal laughed) and got to filming in New York City, which proved to be its own kind of challenge.

"It was crazy shooting in New York with her," Segal said. "I remember one scene we're in Central Park, going down the mall, the promenade with her, you know the same one of 'Kramer vs Kramer' and 'When Harry Met Sally' and there are all the vendors who are selling caricatures, and their sketches are like Michael Jackson and Barack Obama and Jennifer Lopez! It's like, 'Hey can we turn those around?' She's everywhere."

Then there were the ever present looky-loos and paparazzi, some of whom they had to digitally erase from shots in post-production.

It's just part of doing business with Lopez, an industry unto herself. She knows she is tough to pin down, but always makes sure to give her all when she's there.

"Everyone who gets in business with me has to bear with me a little bit because I do so much and I always want to be great when I'm in front of you," she said. "Once you get in the rhythm of that, you're like, ok she's going to show up. It may take her a minute for me to get her but when I get her, she's going to be 100."

She hopes that people find inspiration and hope in "Second Act." One person who already found himself quite emotional about the film is Lopez's boyfriend Alex Rodriguez, who related to being self-conscious about not having a college degree.

"He didn't get to go to college because he went into the big leagues at 18-years-old and he always missed that," Lopez said. "When he saw it he was like 'I felt inadequate because of that.' He's one of the greatest baseball players of all time who has made some of the biggest contracts, but it's not about that, you can feel inadequate being measured up to others because of their privilege and intelligence."

Lopez herself only attended one year of college, but for her, that was a choice that was necessary to jump-start her performing career. Still, she remembers feeling self-conscious and not worthy of some of her successes early on, like becoming the first Latin actress to get $1 million for a role ("Selena").

"I probably didn't realize how important it was. I was so young at the time. And there was a lot of to-do made about that," Lopez said. "Back then you were kind of ashamed like maybe I didn't deserve this. You come from a culture where you don't ask for anything. But now I realize that it was important because our community needed that boost to say, 'Yes we are just as valuable as any other actor playing leading role in Hollywood in a big film.'"

Lopez doesn't like the word "reinvention" — it implies that you have to be something different than you are — but rather she prefers "evolution." And she believes change is happening in the entertainment film industry because women are forcing it to.

"It takes time for us to believe in ourselves. I didn't believe it back then and it happened to me," she added. "Now I'm at a point in my life where I think yes, I do have worth and value and I should be compensated in this way or that way and I do deserve to have a good life and I do deserve to have love... We all are our own activists, we all are our own change, we all are our own vessel to have the life that we deserve but we have to believe that we deserve it."