The Angry Beavers (1997)

S02E08 Dag for Night

The beavers stumble upon an ancient trunk filled with 16mm film reels. Believing they've unearthed an unfinished gem from their idol Oxnard Montalvo, they eagerly embark on a mission to finish the horror film as a tribute. However, when they finally unveil their creation, the results are far from what they had envisioned.