This is possibly the most hilariously bad film I have ever seen and yet I really do not want to see 300 now. Meet the Spartans is very slashy and completely rips off of loads of things. All the jokes in this will probably render 300 boring. However, parts of this film are painfully bad but there are many, many clips on youtube should you with so see them. Some of the singing and dancing is worth watching.
As for the rest... who knows.