Preheat your oven to 375°F (190°C).
Slice the French bread in half lengthwise and place it on a baking sheet.
In a small bowl, mix softened butter, minced garlic, parsley, salt, and pepper.
Spread the garlic butter mixture evenly over each bread half.
Sprinkle mozzarella and Parmesan cheese generously over the bread.
Bake in the preheated oven for 10-12 minutes, or until the cheese is bubbly and golden.
Slice and serve warm.