Mix the graham crackers and margarine together and press into a 13 x9 pyrex dish. (To crush the crackers, you could place them all in a ziploc bag and use a rolling pin. Then add the margarine right to the bag and pour the mixed contents into the dish).
Blend the sugar, eggs, vanilla, and cream cheese. Pour the mixture into the graham cracker crust.
Bake 15 minutes at 350 degrees.
Cool and spread the cherry pie filling over cheese mixture. (opt).