Olsen nervous about starring in `Avengers: Age of Ultron`

London: Actress Elizabeth Olsen is nervous about starring in `Avengers: Age of Ultron` as she has not had much time to develop her character.

The 25-year-old actress is one of the new stars to join the cast of the superhero movie, in which she will play the Scarlett Witch, alongside newcomer Aaron Taylor-Johnson, reportedly. "It is intimidating going into a production where everyone has their characters fully fleshed out and they know their weaknesses and they have their comedy. Aaron and I don`t really have the luxury of time to develop those," she said. The returning cast includes Robert Downey Jr as Iron Man, Chris Hemsworth as Thor, Mark Ruffalo as The Hulk, Chris Evans as Captain America, Scarlett Johansson as Black Widow, Jeremy Renner as Hawkeye and Samuel L Jackson as Nick Fury. Olsen added she cannot wait for the full cast to get together for the press shot to promote the movie. "I`m so excited for that to happen. I really am having so much fun."