Posted by Moon Raper at emly-466.res.umass.edu on September 15, 2001 at 14:35:15:
Van Der Beek refers to the title of the movie as "Bluntman and Chronic Strike Back" but at the end the title on the marquee is "Bluntman and Chronic: The Movie"
But movies do often have their name changed during production, so I guess it really isn't that much of a mistake.