1Mix together the graham cracker crumbs and melted butter press 2 cups of the mixture into the bottom of a 9x13 inch pan. Set aside the rest for the topping. Dissolve lemon gelatin in boiling water, set aside to cool.
2In a medium bowl, beat together the cream cheese, sugar and vanilla. Stir in the gelatin mixture and lemon juice. In a separate bowl, whip evaporated milk. Fold milk into the cream cheese mixture. Pour into the prepared pan.
3Chill for 4 hours, then top with cherry pie filling and sprinkle with remaining crumb mixture.