Trivia: The comic creators originally tried to push for the studio to not include the Shredder in this film outside of a brief reference, so that way he could make a triumphant (or perhaps nefarious) return in a third film. However, the studio wanted to make the movie closer in tone to the cartoon, where Shredder was a recurring villain, and thus vetoed their suggestion.
Trivia: Corey Feldman voiced Donatello in the first movie, but was not asked back because he was in and out of rehab at the time and the studio wanted to distance the film from him.
Trivia: Judith Hoag played April in the first movie but was replaced by Paige Turco in the sequels. According to Hoag, the producers never called her about appearing in the sequels, though she believes it may have been her fault. She had a very hard time on the first movie due to the hectic schedule, and also took issue with the costume design and the amount of violence in the film despite it being aimed at children. She believes these creative differences are why she was recast.
Trivia: The entire cast almost got into a brawl with Vanilla Ice's bodyguards when one of the latter mistook the Michelangelo performer's approach and greeting for an attempted assault on the rapper and grabbed him by the arm to subdue him.
Trivia: This film somewhat notoriously tones down the dark tone from the first movie and has a brighter, more "cartoonish" vibe. This is because the studio got hundreds of complaints from parents that the first movie was too dark and violent for young children. The studio caved and went out of their way to make the movie brighter and less violent, to the point the turtles barely even use their weapons. While this pleased parents, it greatly upset fans of the first movie.
Trivia: In the UK, censorship against nunchucks and "chain stick" weapons was so extensive even the scene in which Michelangelo uses sausages for weapons was cut. According to the BBFC, "since there is real confusion between chainsticks and sausages this sequence needs to be carefully checked."
Answer: If you pay attention to the professor's explanation (starting at 0:55:55) he says "An unknown mixture of discarded chemicals was accidentally exposed to a series of radiated waves and the resulting ooze was found to have remarkable but dangerous mutanagenic properties... on our way to bury them a near collision caused us to lose one of the canisters down a sewer 15 years ago." Basically, "we had an accident and the results were dangerous and unpredictable, so we immediately went to dispose of it all." So there actually were no plans for what to do with it at all.
Garlonuss ★