According to the zero power rule of integer exponents, any non-zero number raised to the power of 0 is equal to 1. Therefore:
\[ -4^0 = 1 \]
Now, we can substitute this back into the expression:
\[ -4^0 \cdot 15 = 1 \cdot 15 = 15 \]
Thus, the solution to \(-4^0 \cdot 15\) is:
\[ \boxed{15} \]