While filming The Cat in the Hat, Spencer was rushed to the hospital to get his appendix removed. As a surprise, co-star Mike Myers sent Spencer an autographed, framed jersey of his favorite football player.
Spencer's favorite subject in school is American history.
Spencer would like to become an actor, director, musician, and pilot when he grows up.
Spencer was talented and confident enough to beat out nearly 2,000 other hopefuls, in the auditions for Disney's The Kid.
Spencer admits that the one thing that does come hard to him, is the ability to cry on-screen.
Spencer had traveled around the globe by the time he was 10.
Spencer hoped that he could study football in Notre Dame.
Spencer's mother is Kim Breslin, who is also his personal manager.
Spencer began appearing in television ads for McDonald's and Life Cereal.
Spencer was discovered at a New York playground at the age of three.
Spencer is allergic to walnuts.
Spencer's height is 5'6".
He has starred in 4 movies with Tim Allen, namely The Santa Clause 2, The Shaggy Dog, Zoom and The Santa Clause 3.
In the 2004 movie Raising Helen, he and his real-life sister: Abigail, played on-screen siblings.
Spencer is the lead singer of a punk band named "Not Quite Dead Yet".
Spencer's favorite movie is The Godfather.
Spencer's younger sister, Abigail, is an actress.
Breslin reprised his role of Curtis in The Santa Clause 3, which opened on November 3, 2006.
Spencer: You have to be able to take rejection and not let it get to you because everyone experiences it. You just have to keep on truckin', no matter how long it takes.
Spencer: (On working with Tim Allen) He is one of the nicest people I've ever worked with. Always funny on set, and he's just a great actor.
Spencer: I get along great with my sister and I got along great with Dakota. Dakota was a great girl to work with. She was always very prepared and it's the same with my sister, who is also an actress.