Sure, use the spam filter if it's an issue of size. That's if you're using LW 4.10

Else, arrange results by size so you don't get confused. See Arrange search results by size (click on link)

1. Movie download issues

2. Direct instructions to eliminate porn from results

3. autogenerated spam results

4. Learn to use Bitzi lookup to see if there's any user-feedback on the particular file; How to use Bitzi Web Lookup ...