To a mixing bowl, add the cream cheese and beat with an electric mixer until light and well beaten.
Add the condensed milk, orange marmalade, and sour cream. Beat again until well mixed. At this point the filling is ready if you are not using the food coloring.
To use the food coloring, simply add 2 drops of yellow and 1 drop of red coloring. Mix with the mixer for another 30 seconds or so or until the coloring is fully mixed in. Feel free to add more coloring as desired.
Fold in the Cool Whip.
Spoon half of the filling into the crust and spread out evenly.
Set aside 6 or 8 orange segments (depends on how many slices you want to get from the pie), place the rest of the orange segments on the filling.
Spoon the rest of the filling over the oranges.
Place 6 to 8 segments equally spaced onto the top.
Drizzle with melted chocolate as desired.
Place in the fridge for at least 4 hours to chill before serving.
Slice, serve, and enjoy.