Jennifer Aniston and Adam Sandler
Because of their friendship, Jennifer and Adam say it was hard keep from laughing during filming. They even improvised some of the film's funniest lines. "When we were romantic, we were ad-libbing. Jennifer was very uncomfortable in scenes with her brother—I'm brotherly to her—so a brother being that close, she started ad-libbing," Adam jokes. "Like: 'Let me say something funny because your big nose is about to hit me.'"
How well do you know Adam? Take this quiz.
Adam says Jennifer gets some of the biggest laughs in the movie. "Every time I thought I was going to get the laugh, Aniston would snag it from me, saying, 'I'll take that, baby,'" he says. "And I was like, 'What happened? How is she better than me?'"
Jennifer wasn't the only one who remembered Oprah's birthday! Watch Adam give Oprah an unforgettable gift.