James, the author of the erotic trilogy, took to photo-sharing website Instagram and shared a behind-the-scenes glimpse on set, reported E! online.
"Action!" James captioned an Instagram snapshot, featuring a slate during the first roll, the 25th scene and the first take on December 1.
Film's producer Dana Brunetti re-tweeted James' picture and added "And we're off."
Screenwriter Kelly Marcel also weighed in on the very first day of filming, tweeting her well-wishes.
The film is scheduled to hit theaters on Feb 13, 2015.