Actress Cate Blanchett says she first watched sex scene when she was in the third grade and her parents took her to see the risque 1976 film "Silver Streak".
"I remember the first time I saw a sex scene. My parents took me, I think I was (in) third grade. It had Gene Wilder in it, it was 'Silver Streak'," Blanchett told W magazine, reports femalefirst.co.uk.
"There was a sequence in it but he's on a runaway train, so you think it's going to be funny and we can take the kids to that, but he was with this woman on a runaway train, running from the law, and he'd hurt himself.
"She started to kiss him. And he said, 'Well actually it hurts here and here' and I thought, 'Where is this going?' And she started to unbutton his shirt. I could feel my mother's buttocks clenching beside me. And I thought, 'Ooo I want some of that'," she added.