Kevin Spacey's 'House of Cards' co-star brands him 'best boyfriend'

Kate Mara, who stars opposite Kevin Spacey in political drama 'House of Cards' as ruthless reporter Zoe Barns, has branded him the best on-screen boyfriend ever.

The 30-year-old actress also told Lorraine Kelly that her character gets drawn into a really dark world with all of these congressmen, but she has the greatest people to play with, Metro.co.uk reported.

Mara, who is 'Girl with a Dragon Tattoo' star Rooney Mara's sister, has a fraught on-screen relationship with Spacey.