Explanation:

- An agreement involving a minor's participation in an adult movie is legally problematic. Parents cannot legally bind a minor in agreements that are not in their best interest or violate public policy.

- Option 1: Void - Such agreements are generally considered void. Minors lack the capacity to contract, and agreements promoting illegal or immoral acts are unenforceable.

- Option 2: Voidable - This refers to contracts that can be canceled at the option of one party. This does not apply because the agreement itself is illegal.

- Option 3: Valid - A valid contract would be legally enforceable, which this agreement isn't due to the involvement of a minor and its immoral nature.

- Option 4: Contingent - Contingent contracts depend on an event that must or must not happen. This isn't relevant to the situation.

- Correct Answer: Option 1: Void - The agreement has no legal effect.