Cut out a circle in the top of the bread and gut out the middle to make a bread bowl (save inside pieces of bread for dipping). In a mixing bowl beat cream cheese, sour cream, cheddar cheese, and Worcestershire sauce. Then mix in bacon. Pour into the bread bowl.
Wrap up the whole thing in aluminum foil. Bake at 325 degrees for one hour. Serve with extra bread from bowl and crackers.