- Advertised Extra: Olivia Wilde only has twenty minutes of screen time.
- Dawson Casting: An odd example since most important characters even though they look young are often quite old. Cillian Murphy in particular is in his mid 30's playing a character a decade younger (biologically speaking). And Justin Timberlake is in his 30s. Of the entire main cast, only Amanda Seyfried was really 25.
- Fake American: Irish actor Cillian Murphy does an American accent. Averted with the British Alex Pettyfer - who usually played these at this time - as he keeps his English accent.
- Playing Gertrude: An extreme example as Justin Timberlake is actually two years older than Olivia Wilde, who plays his mother. Justified as the film is set in a world where no one ages anymore.
- Production Posse: Justin Timberlake, Amanda Seyfried, Vincent Kartheiser and Olivia Wilde had all starred in Alpha Dog.
- Working Title: It originally was going to be titled "i'm.Mortal." It was also listed as "Now" on IMDB for a while.
Trivia / In Time