Wrestling with your brother is normal at any age.
The movie: Four Christmases (2008)
The player(s): Vince Vaughn and Jon Favreau
After three years of successfully avoiding going home for the holidays, happy couple Brad (Vaughn) and Kate (Reese Witherspoon) must endure four separate family visits, where she learns that the boyhood tendency of wrestling with your brother is one Brad's brother Denver (Favreau) has yet to outgrow. And he takes his tussling seriously.