Improvisation was encouraged during filming. One such case was the line: "This corn is like an angel." You can see Allison Pill's (Jane) stoic expression turn into a failed attempt to hold back a grin. The outtakes show that the entire cast soon burst out laughing.
The duet that Frank Wood and his wife perform in the family talent show is "La ci darem la mano" from Wolfgang Amadeus Mozart's "Don Giovanni". The duet is a seduction scene in which Don Giovanni convinces Zerlina to leave her fiancé.
Amy Ryan (Eileen) would turn to be Steve Carell's (Dan) future girlfriend in the TV Series The Office (2005-2013). Furthermore, another The Office star's, John Krasinski's, real life (then soon-to-be) wife, Emily Blunt (Ruthie "Pigface" Draper) is Carell's date in the double date scene.
In Poland, the film was not only released two years after its world premiere, but also the title was changed completely ("Ja cie kocham a ty z nim" - roughly "I love and you are with him") in order to be similar to the Polish title of another movie, namely While You Were Sleeping (1995) ("Ja cie kocham a ty spisz").