Minimal cellular resolutions of powers of graphs

Let $G$ be a connected graph and let $I(G)$ denote its edge ideal. We classify when $I(G{)}^n$, for $n\ge 1$, admits a minimal Lyubeznik resolution. We also give a characterization for when $I(G{)}^n$ is bridge-friendly, which, in turn, implies that $I(G{)}^n$ has a minimal Barile-Macchia cellular resolution.