Three (2010 film)

Three German Drei is a 2010 German drama film written, coscored and directed by Tom Tykwer. The film was nominated for the Golden Lion at the 67th Venice International Film Festival.

The couples separate affairs lead to greater happiness and sexual desire felt for one another. Adam, unaware that his two lovers are involved, develops feelings for them both. The affairs are divulged soon after Hanna discovers that she is pregnant because she was sleeping with both Adam and Simon at the time of conception, she does not know the identity of the father. Now separated, both Hanna and Simon never contact Adam. Hanna moves to England, where she discovers that she is pregnant with twins. After she receives an invitation to an art gallery in Germany, she reconnects with Simon. The two admit that they have missed each other, but they also miss Adam. The film ends with the couple arriving at Adams flat, where they coalesce into a happy, spooning threesome.

Source: Wikipedia