"Fifty Shades of Grey" movie stars Dakota Johnson and Jamie Dornan have great chemistry as  Anastasia Steele and Christian Grey, but is this making Dakota Johnson's boyfriend jealous of Jamie Dornan?

"Fifty Shades of Grey" movie producer, Michael De Luca, told E! News that Dakota Johnson and Jamie Dornan are "hot" when on set together.

"The chemistry is there, they genuinely like each other," De Luca revealed at the Producers Guild Awards over the weekend in Los Angeles. "They're enjoying the story, the story is so powerful."

Another source told E! News that Dakota Johnson and Jamie Dornan have already "filmed a majority of the sex scenes and really hit it off" on the set of the "Fifty Shades of Grey" movie as Anastasia Steele and Christian Grey.

But is this "chemistry" making Dakota Johnson's boyfriend jealous of Jamie Dornan working so closely and intimately with his girlfriend?

Dakota's boyfriend Jordan Masterson has been on the "Fifty Shades of Grey" movie set in Vancouver, Canada. While the two "appear to be very happy" enjoying Vancouver when Dakota isn't shooting scenes as Ana Steele, perhaps her boyfriend is keeping his eye on Dakota and Jamie while he's there.

Meanwhile, Jordan spent Christmas with Dakota and her family, including famous mom Melanie Griffith, in Aspen, Colorado.

And it looks like Jamie only has a platonic relationship with Dakota: "Jamie Dornan is really protective over Dakota," the source told E! News. "She is very friendly and talks to everyone [crew, security, etc.] Jamie stays to himself and does not talk much. Jamie thinks Dakota gets really distracted, because she is so nice to people and so he will walk over to who she is talking to and try and end the conversation. He is nice about it, but he does ask them to leave her alone."

"Fifty Shades of Grey" hits theaters Feb. 13, 2015.