Sophie's choice?

Rating: 9/10 (15 October 2006)

I have just seen Donnie Darko and struggled with some of the imagery and concepts, particularly the role of Grandma Death.
In my mind, it boiled down to a choice - live on without Gretchen and expose Jim Cunningham - or die to let Gretchen live and in the process allow Jim Cunningham to carry on his hypocritical and poisonous (Trying to avoid the word evil here!) activities.
In the end Donnie chose to let Gretchen (and Jim!) carry on.
Obviously a lot more that that involved, including an expose of the danger and hypocrisy of the American religious right.
I have only come across this site and have not read too many comments. Am I wide of the mark?