Will Fifty Shades of Grey (film) be rated R or NC-17? Time will certainly tell, but we have some information that indicates that the film might be very risqué and lean towards the NC-17 side.
The producers know they have to make the screen version just as steamy as the novel to make it successful, which means that there will be nudity.
A source stated, "Jamie Dornan is definitely not afraid to flaunt everything he's got. Christian Grey spends a lot of time naked, so it's no surprise that Jamie will strip down during his time in the Red Room of Pain."