Make crust: in large bowl, combine cracker crumbs, sugar, cinnamon and butter; mix well. Press mix into a 10-inch pie pan, sides and bottom. Set aside.
Make filling: in a food processor (or blender) process mango until pureed. Add egg yolks, lime juice and the two cans of milk. Mix, combining well. Fold in the diced mango using a rubber spatula to keep the mango intact.
Pour mixture into crust and bake for 20 to 25 minutes. Remove and cool pie completely. Keep refrigerated until shortly before serving. Top with fresh whipped cream.