The key is to choose something you're interested in, not too broad and not too narrow. It must be a subject which gives you scope to do a production.
Here are some more sample titles from AQA. Match your proposal against this AQA checklist.
AQA has another list of MEST 4 suggestions here
Check the Media Studies spec for mark schemes and assessment objectives.
•Your choice of topic – narrow rather than broad
•Synoptic – scope for lots of theory, discussion, issues & debates
•Must go beyond NDM or representation
•Independent, autonomous
•Must include bibliography & real BOOKS
•Must allow for a neat tie-in with a practical production
•See blog, AQA spec and assessment objectives
Schedule for 2011-12
Week beginning
Nov 28th – research, including books
Dec 5th – research, JPM will check progress
Dec 12th – start writing + hols
Jan 2nd - writing – progress check. “Draft 1” in
Jan 9th – start linked production
Jan 10th – ‘Draft 2’ in
Fri Jan 20th – deadline for Critical Investigation
Weds Feb 8th - deadline for Production