John Cusack and Jeremy Piven
John Cusack and Jeremy Piven, who grew up in the same hometown, moved in together while they studied acting in Chicago. When Cusack's acting career took off, he found places for his pal in films like "Grosse Pointe Blank." Piven eventually found his own fame with a role on HBO's "Entourage." —XFINITY Entertainment Staff (Photo by Kevin Winter/Getty Images)
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