When Robbie (Jonah Bobo) deletes Jessica's (Analeigh Tipton) number from his phone, the name "Joey K." appears on the list. Joey King is the actress who played his sister Molly in the film.
The bedroom scene, during which Jacob (Ryan Gosling) and Hannah (Emma Stone) have a long dialogue, did not have a fixed script. The actors poured themselves some drinks and improvised.
Emma Stone is actually only 3 days older than her co-star Analeigh Tipton. However, Emma's character, Hannah, is nearly 10 years older than Tipton's Jessica in the film.
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