Zac Efron shares a behind-the-scenes look at A Family Affair

Zac Efron shares hilarious behind-the-scenes clip of Joey King doing her own skull-knock stunt in their rom-com A Family Affair with Nicole Kidman

Zac Efron shares a behind-the-scenes look at A Family Affair. The 'High School Musical' star took to Instagram to share a hilarious behind-the-scenes clip of Joey King doing her skull-knock stunt in their rom-com A...