When an honest high school football star kills a young woman while driving drunk, his morals are put to the test when those he respects cover up the crime.

I agree with the other comments - I think 'honourable' is stronger than 'honest'. But I think the concept is strong - it certainly sets up both the mental and physical in the story and you can see what the arc will be for the main character, so well done.

I agree with the revision of "honest" - perhaps "a principled football star"?
Also - his morals are put to the test is compelling, sure, but it doesn't give an idea of what the bulk of the film is going to actually have him doing. Is he fighting them in court? Is he slinking by trying not to make a big deal of it? I think you need to be more explicit describing what he does, and what the stakes of failure are if he doesn't do it.

I think this would be a very good story, because for me stories need to have a meaning into it and this story is a potential story.