In the first episode of Dragon Ball, Goku meets Bulma and Songon. Bulma was looking for the 4-star dragonball which Goku owned. She was collecting them so she could make a wish to find true love. Goku then decides to follow her on her quest in the search of the rest of the dragonballs.
When this movie was shown in 1967 one of the promos was a pack of torture garden seeds given to patrons as they entered the theater.