My three worst:
3. Kurt Russell's Soldier
2. Robert Duvall's Assassination Tango
1. James Franco's Corpsefucker (Child of God)

There's no curling stone here or on the unicode page. That's a kiwi. Or pancakes. Or whatever else you've confused for a curling stone.

Can't believe no Linney and Ruffalo! Might be my favourite on-screen siblings ever.