They played an incestuous mother and son in the 2007 film Savage Grace. Oh, and the love scene was with Hugh Dancy.
This year's Oscar winners for Best Actress and Best Actor, Julianne Moore and Eddie Redmayne, have actually known each other for many years.
Getty Images / Jason Merritt
The pair first met when they starred together in the 2007 drama Savage Grace.
In the movie, Moore played a real-life millionaire socialite named Barbara Baekeland, while Redmayne starred as her troubled son Antony.
Ifc Films / Everett Collection
Ifc Films / Everett Collection