Amanda Seyfried: 'In Time will leave you breathless'

Amanda Seyfried has promised that In Time will leave viewers "breathless".

The Mean Girls star revealed that she enjoyed shooting the sci-fi film, confessing that she was particularly thrilled to change her regular look.

"I sure did have a lot of fun with this movie though and I loved having different hair colour," Seyfried told Hollyscoop. "I didn't have to go home with it, but you know, it's certainly great to change your look every once in awhile.

"[The movie] is thrilling and it's kind of out of this world. But at the same time it's so grounded in what we're dealing with today as a society, that I feel like it will leave you breathless and remind you of the time that we don't have."

Seyfried recently revealed that she undergoes therapy sessions to help her deal with panic attacks, saying that counselling has helped her deal with many of her worries.

Last month, the actress revealed that she found filming sex scenes with Justin Timberlake to be "easy", claiming that his previous experience made it "fun".

Watch the trailer for In Time below: