'Young Pete', played by Connor Jones, and 'Pete' played by Mark Wahlberg both had many black dots drawn on their faces during filming for the football flashback in order for their faces to be matched perfectly in post-production.
"Meatball" is played by a three-year old Bernese Mountain Dog. Prior to filming, he had completed his AKC grand championship, an obedience title, several rally obedience titles, and a dock diving title. After filming completed, he added his BMDCA and Canadian draft titles and several others, becoming a Versatility Dog in both the US and Canada.
The trivia items below may give away important plot points.
While drawing pictures of their dream children, October draws a football player with the number 74. 74 was the number of Quinton Aaron's number in the film "The Blind Side" which is a recurring joke about her character.
The character Kit is played by actor Hampton Fluker. Hampton Fluker played a minor role in the film, The Blind Side which is the focus of a recurring joke throughout the movie about adoptive mother, October.