'Iron Man 4' Trailer & Release Date: Film Scheduled After Phase 3? Cast Gwyneth Paltrow Shares Childcare Tips, Says Co-Parenting Has 'Been Hard'

"Iron Man" fans are surely excited to see their favorite superhero on the big screen, and there is a future for that as "Iron Man 4" is under negotiation. While the next installment of "Iron Man" is not yet final, the billionaire and genius superhero will be featured in the upcoming movie, "Captain America 3: Civil War."

According to Venture Capital Post, there is a possibility for a new "Iron Man" after Marvel Phase 3. Of course, it won't be wise for Marvel to let go of the next "Iron Man" installment given that the famous movie was a big hit. Moreover, there is a chance for Robert Downey Jr. to take up the popular and titular role.

The report notes that RDJ might still consider another "Iron Man" film. Director Shane Black was quoted saying, "I think he'll be back for another one. I'm sure of it."  Actually, there is no question on RDJ's interest for the next installment. However, a separate report from Venture Capital Post says that RDJ is asking for a higher talent fee because of the said movie's success. This financial issue is the main factor that caused the delay of the anticipated film.

In case Marvel and RDJ do not come to terms, a new actor will be introduced to play "Iron Man". The report suggests that the probable replacement would be Ty Simpkins, the actor who played Harley Keener in "Iron Man 3."

On the other hand, Gwyneth Paltrow, who plays Tony Stark's personal assistant, confidante and love interest in the said hit movie, talks about  co-parenting with ex-husband Chris Martin.The Oscar-winning actress revealed that co-parenting is difficult, but it gets easier with time because she maintained a good relationship with the father of her kids.

"It's been hard and we've gone through really difficult times with it but we've always said these children are our priority," the mother of two said during the #BlogHer15 conference, as quoted by Mirror.

Although Martin is reportedly engaged to his current girlfriend, Jennifer Lawrence, as per a report from OK! Magazine, he and Paltrow remain good friends. Paltrow was even very appreciative of the rockstar when it comes to parenting.

"I'm very, very lucky that I have a partner who's willing to do it with me in a really collaborative way. I'm really for Chris and he's really for me and our children are our priority," Paltrow said. "What that really means is: Even if you hate me and never want to see me again, we are going to brunch. It's definitely imperfect, [but we] are really great friends [and] he's a great dad."

In a report from Express, she insisted that she would never judge others on how they raise their children because every family has their own arrangement, but if there is a way to maintain the family even after changing its shape, it would be the ideal one.

Separated parents should share Paltrow's view about putting the family's best interest even after a separation or divorce. Gwyneth is currently dating "Glee" co-creator Brad Falchuk.