Reports this week suggested writer E.L. James had been arguing with Taylor-Johnson over changes made to the story as she shoots the new movie adaptation.
The feud rumours surfaced just weeks after the movie's release date was pushed back from this summer to next year, prompting speculation the project is in trouble.
However, James has now moved to dismiss rumours of tensions on set by posting a humorous picture of herself posing with the director.
The pair is seen grinning and raising their fists to the camera in the snap, which was posted on James' Instagram page along with the caption, "The gloves are off..."
The screen adaptation will star Co Down actor Jamie Dornan as playboy billionaire Christian Grey.
The film also stars Dakota Johnson as timid student Anastasia Steele and singer Rita Ora as Christian's sister Mia.