Question: movie where guy falls in love with best friend?
Answer: When Harry Met Sally... (1989) ...  A Lot Like Love (2005) PG-13 | 107 min | Comedy, Drama, Romance. ...  Definitely, Maybe (2008) PG-13 | 112 min | Comedy, Drama, Romance. ...  You've Got Mail (1998) ...  Zack and Miri Make a Porno (2008) ...  He's Just Not That Into You (2009) ...  Some Kind of Wonderful (1987) ...  Best Friends (1982)