Did you ever see a pair on screen and think “Hey, they’ve done work together before?” Bradley Cooper & Jennifer Lawrence (Silver Linings Playbook, American Hustle, soon to be Serena), Jason Sudeikis & Jennifer Aniston (The Bounty Hunter, Horrible Bosses, We’re the Millers), James Franco & Seth Rogen (EVERYTHING), etc. It happens a lot, actually.
What doesn’t happen too often, though, is when frequent co-stars go from playing lovers to family members (and vice versa). Here are some of the very few times in which it has occurred:
Robert Pattinson & Reese Witherspoon
Lovers in Water for Elephants (2011); son & mother in Vanity Fair (2004).
Photo: Fox 2000 Pictures/Focus Features
Ryan Phillippe & Sarah Michelle Gellar
Lovers in I Know What You Did Last Summer (1997); step-siblings in Cruel Intentions (1999).
Photo: Columbia Pictures
Shailene Woodley & Ansel Elgort
Lovers in The Fault in Our Stars (2014); siblings in Divergent (2014).
Photo: Fox 2000 Pictures/Summit
Will Arnett & Amy Poehler
Lovers on Arrested Development (2004); siblings in Blades of Glory (2007)
Elizabeth Olsen & Aaron Taylor-Johnson
Twins in Captain America 2: The Winter Soldier (2014) & Avengers: Age of Ultron (2015); lovers in Godzilla (2014)
Photo: WENN/Warner Bros.
Adam Scott & Amy Poehler
Lovers on Parks and Recreation (2009-FOREVER); stepmother and stepson in A.C.O.D. (2013).
Photo: NBC/Film Arcade
Ashley Greene & Kellan Lutz
Lovers in A Warrior's Heart (2011); adoptive siblings in Twilight (2008).
Photo: Xenon Pictures/Summit
Paul Rudd & Elizabeth Banks
Lovers in Wet Hot American Summer (2001) & Role Models (2008); siblings in Our Idiot Brother (2011).
Photo: USA Films/Universal Pictures/The Weinstein Company