As "Fifty Shades Darker" cast members are back on set, certain rumors claimed that the on-screen chemistry between Jamie Dornan and Dakota Johnson have been observed to be waning, a news report said.

The movie, which is the second installment of the adaptation of E.L. James novels, talks about the romance between lead characters Christian Grey and Anastasia Steele. And with how they reportedly appeared on the set, a report from Celeb Dirty Laundry hinted that the situation is quite ironic.

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According to the gossip site, the 33-year-old actor "lacks the vigor and passion to work" with his 26-year-old leading lady in "Fifty Shades Darker."

It was alleged that this started when his wife, Amelia Warner, gave birth to their second child.

The site continued by saying that with baby number 2 around, the loveteam of Jamie Dornan and Dakota Johnson allegedly got affected, that he "is now struggling to channel his leading man role."

However, despite these rumors and news about the "Fifty Shades Darker" stars, the site noted that the film could still make it big in the box office and achieve, if not surpass, the blockbuster performance of "Fifty Shades of Grey."

In the meantime, Daily Mail Online reported that the upcoming movie, directed by James Foley, will have an exciting plot and will even be "darker" as the ex-girlfriends of Christian Grey, to be played by Kim Basinger and Bella Heathcote, are set to join the cast.

Keep posted for more news and updates before "Fifty Shades Darker" hit theaters by February next year. 

TagsFifty Shades Darker, Jamie Dornan, Dakota Johnson