Went to medical boot camp for 'Flatliners' prep: Nina Dobrev

London: "Vampire Diaries" star Nina Dobrev said she had to do a medical boot camp for her new movie "Flatliners" to make everything look believable.

The 28-year-old actor stars in the upcoming horror thriller by Niels Arden Oplev and for the role as medical student Marlo, Dobrev and the rest of the cast had to undertake training, reported Contactmusic.

"We went through a rigorous medical boot camp to learn about everything to do with reviving a human in a dire situation - CPR, how to use the defibrillator, how to get heart monitors, and if that's not working, how to physically check the body," Dobrev said.

"We had to do that so that we would look believable on camera as if we had been doing it for years. I don't want to say that I could save a person's life, but I could definitely assists in keeping them alive until the proper paramedics came if something were to happen. My character especially, she's the most hardheaded, stubborn, by-the-rules kind of girl, and she's competitive, so she wanted to go above and beyond and test the limit."

Dobrev stars alongside Ellen Page, Diego Luna and James Norton in the movie, which is a sequel to the cult 1990 movie of the same name.