Trivia: Looney Tunes: Back in Action
- Actor Allusion:
D.J: What I really do is I... I'm a stunt boy!
Daffy: HA! You, a stunt boy!? Please!
D.J.: I am! You seen those Mummy movies? I'm in them more than Brendan Fraser is! (A lot of Fraser's commentary for the first Mummy movie is him pointing out stunts he didn't do.)
- Creator Backlash: Since the film came out, Joe Dante has really only discussed this movie publicly just once. The one time he did all he could talk about was the Executive Meddling behind it, and "the less said about [the movie], the better." He did say though that "At least it's better than Space Jam".
- In the TV documentary "From Pencil To Pixels," and interview with Eric Goldberg shows that he was already pretty unhappy with the film as it was being made, expressing his frustration over how Warner Bros. was pushing for a Looney Tunes revival while simultaneously wringing out the political incorrectness that made it so great.
- Creator Killer: Warner Bros. Feature Animation, which had yet to produce a single financially successful film since 1998 (mostly due to poor advertising and the studio only having a passive interest in animated features) finally collapsed after this film failed.
- Franchise Killer: The faltering merger of Time Warner and AOL caused all official merchandise to end years earlier. But this film! This film put an end to any major Looney Tunes production for good... and only until five years later would someone revive them into a television show!
- Not only this, but one year after the film's release, the classic Looney Tunes shorts were canceled from Cartoon Network, and were not seen on TV for nearly half a decade until Cartoon Network slowly began to bring them back in 2009.
- Hey, It's That Guy!: Roger Corman directing a Batman film, the identical twins from Terminator 2 as the Warner Brothers, Timothy Dalton as a James Bond Affectionate Parody/Expy, Ron Perlman, Robert Picardo and Mary Woronov as Acme VPs, Peter Graves as a Civil Defense film host, Joan Cusack as an Area 52 researcher...
- Hey, It's That Voice!: Casey Kasem returned to voice Shaggy after 8 years for his seconds-long cameo. Scooby is, as always, voiced by Frank Welker.
- Old Shame: Joe Dante refuses to talk about this movie in great detail. All he said is that he only agreed to direct the film to pay tribute to Chuck Jones, who had recently passed away and was a close friend of Dante's and that Warner Brothers gave him no freedom in the creative process.
- Talking to Himself: Brendan Fraser playing three different characters, one of them even punching another near the end. One of them is Brendan Fraser himself.
- Not to mention Bugs and Daffy; both voiced by Joe Alaskey.
- Throw It In: Brendan Fraser kept imitating the Tasmanian Devil, so the producers decided to let him voice Taz.
- What Could Have Been: Triple H was originally going to play Mr. Smith. They actually based part of his feud with Goldberg around this.
- Instead of Brendan Fraser, Jackie Chan would have been the star.
- According to the deleted scenes, the movie was originally to have a completely different opening and ending plot progression, the opening being a Batman parody while the plot itself would have stayed in the jungle and involved Tweety (who was apparently supposed to stick around with the heroes) to a greater extent.
- On page 105, of this screenplay draft, one will see that Elmer was supposed to chase Bugs and Daffy into Escher's famous staircase painting, but the gag was cut out. A very similar idea will turn up years later in Night at the Museum: Secret of the Tomb.