PG | | Action, Adventure, Comedy
A Beagle must use his newly-bestowed superpowers to defend Capitol City from mad scientist Simon Barsinister.
Jim Belushi comes home to the house being trashed and as he walks into the kitchen says "I hope this is chilli". Jim Belushi starred in another can I be friendly film K9 where the dog, jerry Lee, eats chilli for breakfast.
Oh, gross! Your mouth was open.
When Jack is speaking to his dad near the end of the movie, Underdog is listening from behind a wall. In the previous scene he was wearing his new collar, but when he is behind the wall the collar is missing. The next time we see him, the collar is back.
Snapshots of the cast and crew's dogs were shown as well as some "Bloopers"
$11,585,121 (USA) (5 August 2007)
$43,751,706 (USA) (9 December 2007)