I recall that the film had Bugs Bunny and his crew and they talk about drugs and how they're bad for you.
It's been bothering me for years about this movie.
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The Bugs Bunny anti-drugs PSA is probably Cartoon All Stars to the Rescue.
Along with Bugs, it also starred a host of other animated characters; ALF, Alvin and the Chipmunks, Huey, Dewey, and Louie, Garfield, Daffy Duck, Porky Pig, Baby Kermit, Baby Piggy, Baby Gonzo, Winnie the Pooh, Tigger, Slimer, The Smurfs & Michelangelo the turtle.