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Pretty Little Liars

Pretty Little Liars Season 4 Spoiler Pics — Night Shoot Sneak Peek (PHOTOS)

The dedicated cast and crew of Pretty Little Liars are in the midst of a big experiment: Writer Joseph Dougherty wrote both Season 4, Episode 3: "Cat' Cradle" ;and Episode 4: "Face Time," and director Norman Buckley is working on directing both of them at once. So, naturally, on Friday, April 5, that made for a late night.

"Late call," director Norman Buckley tweeted. "An all-nighter in Rosewood. #PLL" And he wasn't kidding — the last scene wrapped around 6 a.m.!

Their late night shoot was our gain, because Norman documented it quite nicely. Click through this gallery for a behind-the-scenes look at what kept the Liars up so late!

Pretty Little Liars Season 4 premieres on Tuesday, June 11, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.