A feature-length film adaptation was theatrically released in the United States and Canada on January 16, 2004, which serves as a finale to the television series.

Meanwhile, Mrs. Helperman has to write up a new holiday school play that includes all the kids' religious traditions, but finds it harder than she expected.

Song - "Season Of Love" Mrs. Helperman agrees to be a pet sitter for Principal Stickler's cat Tallulah.

When Scott takes his new role as playground safety monitor a bit too seriously, Leonard intentionally breaks a bunch of small offenses to make a point that his new rules are ridiculous.

Leonard feels very guilty when he lets kindergartner Emma get a crush on him and feeds him free samples of candy from her dad's store, so Scott tries to help out, only to get roped into the same situation.

Both Scott and Leonard get Junior Boy Ranger community service assignments that they absolutely can't stand.

Meanwhile, when Pretty Boy finds out that Mr. Jolly recent stomach problems stem from having milk, he assists in helping him from having anymore dairy.

Song - "Team With A Capital 'T'" The pets have to spend Thanksgiving in the porch when Grandma Rose visits, bringing with her a live turkey for dinner.

Song - "The Litterbox Aria" New girl Fred Bitters picks on Scott and Leonard so much that Spot decides to quit going to school.

Guest star: Jeff Bennett as Myron the Magnifico and Pat Musick as Mrs. Dunkling and Intercom Song - "Can't We All Get Along?"

[9][nb 3] A full-length animated feature based on the series, also titled Teacher's Pet, was released by Walt Disney Pictures on January 16, 2004.

The film features the main cast from the series reprising their roles alongside new characters played by Kelsey Grammer, Megan Mullally, and Paul Reubens.

The film received mostly positive reviews from critics but was a failure at the box office, making little more than half of its budget back.