The animated movie would be Titan A.E.
The seed vault is a good idea. It is good in theory. However, here are the problems I could potentially see.
1. The Svalbard Global Seed Vault is located on a remote island in the arctic region of Norway. So a major catastrophe occurs. The world is crippled. You need to start growing food again. How do you get to the seeds?
2. You have multiple countries in need of viable seeds. Who gets them? Is it first come, first serve, or will they just have to fight it out for them.
3. The entire facility uses coal powered refrigeration units. What happens if there is no more coal available. Or if there is nobody to provide the coal to them?
It is estimated that if the power goes out, the vault will stay cool for about 2 weeks before the temperature gets high enough to begin damaging the seeds. So who is to say that there will be any usable seeds when you finally get there.