Roronoa Zoro serves as a core crew member in the 2011 film *One Piece 3D: Straw Hat Chase*. When Luffy's straw hat vanishes, Zoro joins the frantic crew-wide search. His alertness shines as he dives in to rescue Luffy from drowning after Luffy mistakenly believes the hat fell into the sea. Throughout the chase, Zoro faces obstacles like Marine blockades and attacking Sea Kings. His swordsmanship takes center stage when he slices through a seastone cage to free Luffy after their capture by Marines. Zoro collaborates closely with the crew during the pursuit, especially in a fierce clash against Marine giants where teamwork is vital for victory. The film underscores his established traits of combat reliability and unwavering loyalty to the crew's goals.