A sexually frank and emotionally tender look at the pains of growing up, "Krámpack" is incisive, but lightweight.Director Cesc Gay attempts to combine the Latin spirit of "Y Tu Mamá También" with the edge of "Ma Vie", but is only partly successful.[...]Is it simply homoerotic horseplay or something emotionally deeper?Avoiding the obvious routes, Gay's film - based on a stage play by Jordi