You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who plays in how to train your dragon?" whose answer is Gerard Butler.
Each document should contain about 30 words, and these documents should contain useful information.

Query: voice actors in how to train your dragon
Useful Output:

Doc 1: The "How to Train Your Dragon" movie trilogy stars Jay Baruchel, America Ferrera, Cate Blanchett, Kristen Wiig, and Kit Harington — just to name
Doc 2: Behind the Voice Actors of How to Train Your Dragon: The Hidden World 🍿🎬 #voiceactor #animation #movie #film #fypシ #fy
Doc 3: 'How to Train Your Dragon' Cast Unveiled: 1 Voice Actor Reprises Role & 10 Actors Join Live-Action Adaptation.
Doc 4: Support Original, Buy Original DVD/Blu-rays at Amazon
Doc 5: how to train your dragon was a 2010 american fantasy film about the co-existence of ancient vikings and dragons. it was a dreamworks