LIVE POLL: Actual Siblings Playing Siblings

There are plenty of sibling actors out there but not often do they actually play siblings with each other in a film. Which of these rare cases did you like the most? 

Good Will Hunting - Casey and Ben Affleck 
Rojo Amanecer - Bruno and Demian Bichir 
The Fabulous Baker Boys - Beau and Jeff Bridges 
Yankee Doodle Dandy - Jeanne and James Cagney 
The Long Riders - Robert, Keith and David Carradine; Nicolas and Christopher Guest; Randy and Dennis Quaid; and James and Stacy Keach 
Say Anything - Joan and John Cusack 
Material Girls - Haylie and Hilary Duff 
Donnie Darko - Maggie and Jake Gyllenhaal 
Lipstick - Margaux and Mariel Hemingway 
The Kreutzer Sonata - Danny and Anjelica Huston 
Do the Right Thing - Joie and Spike Lee 
The Florentine - Virginia and Michael Madsen 
New York Minute - Ashley and Mary-Kate Olsen 
At Close Range - Chris and Sean Penn 
The Harry Potter movies - James and Oliver Phelps 
Mo' Money - Marlon and Damon Wayans 

List: http://www.imdb.com/list/ls071811413 
Poll: http://www.imdb.com/poll/Gs1QkK1L1jI 
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Went live 11/24/14