Jamie Dornan has divulged that he "followed a woman off a train one day" to prepare for his role as serial killer Paul Spector in BBC drama The Fall.
The Fifty Shades of Grey star made the "bad reveal" during a live chat with the LA Times as he explained how he attempted to get into his brooding, psychotic character's mindset.
"The first series, I did do a couple of things to try to get inside [his mind]. On the tube, which is our underground system..." Dornan began the anecdote before trailing off and asking: "Can we get arrested for this?
"Hold on... This is a really bad reveal: I, like, followed a woman off the train one day to see what it felt like to pursue someone like that," he finally confessed.
Dornan stressed that he kept his distance from the woman and once she reached her stop, he lingered behind her for only a few yards.
He admitted that while he was not 'proud of himself', he learned a lot from the unsettling experience, continuing: "It felt kind of exciting, in a really sort of dirty way.
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"I'm sort of not proud of myself. But I do honestly think I learned something from it, because I've obviously never done any of that. It was intriguing and interesting to enter that process of 'what are you following her for?' and 'what are you trying to find out?'"
Dornan stars opposite Gillian Anderson, who plays Detective Stella Gibson, in the gripping thriller which ended with a cliffhanger in series two.
The BBC recently confirmed that The Fall will return for a third series.
The next run of episodes is expected to air in 2016.
Naomi Gordon is news writer mainly covering entertainment news with a focus on celebrity interviews and television.
