Eva Longoria has promised that her new movie The Fifth Wheel is "unapologetically R-rated".

The 51-year-old star is directing the upcoming comedy flick that stars her friend Kim Kardashian in the lead role and says that working on the Netflix picture was her "dream job".

Eva told People: "It's so much fun. We just wrapped after three months of filming. We ended in Vegas. It was a dream job.

"First of all, it's a big, unapologetically R-rated female comedy that feels modern and contemporary."

The Fifth Wheel features Nikki Glaser, Brenda Song and Fortune Feimster as high school friends who "attempt to reconnect during a weekend jaunt to Vegas".

The synopsis adds: "When a hot outsider (Kardashian) crashes the weekend, they're forced to face their messy lives, bad decisions and unraveling friendships."

Eva described Kardashian as "the anchor of the movie" - which also stars Jack Whitehall and Will Ferrell - as the reality star serves as a producer on the film.

The Desperate Housewives star said: "Kim is the anchor of the movie. We just had a blast. Kim and I have been friends for 25 years, and when I got the job, she said, 'Oh, thank God Eva knows I'm funny.'

"And she is - she's so funny. I cannot wait for the world to see how great she is in this movie and hopefully spark more female comedies."

Longoria explained that the making of The Fifth Wheel was a joyful experience.

She recalled of her favourite moments on set: "Just sitting and kiki-ing with Kim and everyone.

"Nikki is so profound. She's incredibly insightful and wise beyond her years. I loved just sitting and talking with them. Fortune is just a light - such a joy to be around. Every day, we were laughing non-stop."

Eva added: "It was also really special because we had female writers, producers, cast and a female director. That's not common, and you could feel it. The set felt different because of it."

Longoria recently revealed that she was always convinced that she would become successful and that the women in her life have played a major role in her achievements.

She said: "So many people have guided me in my life. I have nine aunts, three sisters and 18 female cousins. I was surrounded by smart, independent and successful women."

The Over Her Dead Body star continued: "I didn't have to look far to see the woman I wanted to be. I was like, 'Oh, I'm going to be like my sisters. I'm going to be like my mom.'

"That instilled in me this idea that I always knew I would be successful. I didn't know what I was going to do -- whether I would be a dentist or a lawyer -- but I knew I'd be successful. And that came from the community around me."