In Dirty Grandpa, Robert De Niro plays Richard "Dick" Kelly, who spends some "quality" time with his grandson Jason (played by Zac Efron). Jason is shocked to see how his army veteran grandfather behaves so soon after the death of his wife - flirting with young girls and getting involved in fights. But Dick isn't just a regular old grandpa! Find out all the essential details about Dirty Grandpa in this collection.
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