27 September,2013 11:40 PM IST | | ANI
The Scottish actor said that not in his wildest dreams did he ever think that he would have to sexually harass his sister, Joy, on screen for a role, the Daily Star reported.
The 34-year-old hunky star said that thankfully, he didn't have to kiss her or touch her or anything like that.
The âAtonement' actor added that the harassing scenes were a "wee bit weird".
McAvoy added that it was hard because he couldn't stop laughing while shooting the scenes and he was the one who was doing the bad stuff.