The 75th Anniversary variant of the animated 20th Century Fox logo at the beginning of the movie changes to a cartoonified version. The word "CENTURY" appears to be shaded. The logo zooms out, revealing Greg's journal.
Other than the film's name, there are no opening credits.
Right After the credits, We See An Animated Greg And Rowley, Waving To The Screen, But Then, Rowley Is Cheering In Which Greg Finds It Embarrassing.
Title appears at the end of the credits.