1. The Parent Trap was Lindsay Lohan’s first film.
2. A casting search for Annie/Hallie visited eight major cities with open casting calls in both New York and LA before the role was given to Lohan.
3. Michelle Trachtenberg was considered for the part(s) and her birthday is also on October 11th (the same day as Hallie and Annie’s).
She went on to have roles in Buffy the Vampire Slayer and Gossip Girl.