This romantic comedy is so much more than that. It was written for Katherine Hepburn and after playing it on stage she asked Cary Grant (who had starred with her in Bringing Up Baby, Hepburn's last movie that made her box office poison years before) to star with her.
Katherine Hepburn is great in this. She has the character down pat. She's cold and distant even while being hurt and uncertain.
Cary Grant is hilarious and you can tell sometimes when he's ad-libbing 'cause his humour is a bit off the wall. His scenes with Drunken!Jimmy Stewart are so great.
Jimmy Stewart won an Oscar for his role in this move and it's easy to see why. He goes from funny and sometimes bitterly amused to the most heartwrenching speech about beauty that after too many viewings still gets me choked up.