Keira Knightley finds romantic comedy 'tricky'

London, June 30 (IANS) Actress Keira Knightley says she agreed to do romantic comedy "Begin Again", even though she finds the genre "tricky".

The 29-year-old tends to avoid lighter films, but couldn't resist starring alongside Adam Levine and Mark Ruffalo in "Begin Again", reports contactmusic.com.

She said: "After 'Anna Karenina', I realised that I'd done five years of work where I'd died or something horrific had happened to me in absolutely everything. I wanted something more positive and with hope in it.

"Romantic comedy isn't a genre I usually go to - it's one that I find quite tricky, but I thought this was strange enough with enough of a sort of acerbic quality to it," she added.