Continuity mistake: When Yosemite Sam is chasing everyone through Las Vegas he drives the race car through a souvenir stand. This puts a large dent in the front hood of the car. This dent disappears when the car is shown next.
Continuity mistake: Brendan Fraser closes Daffy's beak in the car window as they are leaving the garage. When they pull out of the garage and Daffy is back in the car the window is all the way open again.
Continuity mistake: Bugs Bunny shows his displeasure with Marvin Martian by keying the Martian Maggot. Later when Bugs Bunny pulls the "Lost Tourist" joke (and wins $5.00 from Daffy Duck) the scratch on the Martian Maggot is repaired.
Continuity mistake: In the opening scene when Brendan Fraser falls on the table, he stands up and it goes flying. There are only empty plates on it, but when it shows the film directors, they are covered in food.
Continuity mistake: When Daffy, Bugs, Kate and Brendan are in the forest, Kate and Brendan have knives, but when they encounter Granny the knives are gone.
Continuity mistake: When DJ and Daffy leave, the car that comes up from the revolving floor is a TVR Tuscan,but when Kate and Bugs,leave for Las Vegas in it, it turns into a Lotus Elise.If you live in Europe, and like cars, this is easy to spot,because the Lotus is and open top car with a flat rear-end, while the TVR is a closed roof car and has a rounder rear-end.
Continuity mistake: In the scene with DJ and Daffy Duck in DJ's house, Daffy throws an apple at DJ's face and hits him on the cheek. In the next shot, DJ's rubbing his forehead, as though he got hit there.
Continuity mistake: In the shot of Bugs saying, "Hey, what do you know? I found Nemo," he reals a fish out of the water. In the very next shot, the fish vanishes.
Answer: It's hard to nail down exactly why, but I think it was a combination of a few factors. The biggest of which was that it was released within a week of three other high-profile family films, including the surprise sleeper hit "Elf." It simply had fierce competition. It was also known at the time that the film had a somewhat troubled production, which could have impacted audience perception. I think it's also worth noting that, on the whole, Looney Tunes theatrical films tend not to draw huge box office numbers. "Space Jam" was their only real hit out of four theatrical films. One could argue that the popularity of Michael Jordan in the sporting world is what gave "Space Jam" a leg up over the other Looney Tunes films, as he brought in a wider audience.
TedStixon