Producer/director Roger Corman briefly abandoned Edgar Allan Poe for The Secret Invasion, a commendable attempt to make a war epic on a "B" budget. The story is a scaled-down precursor to The Dirty Dozen: Five criminals are given a chance at a pardon by agreeing to participate in a suicide mission for British Intelligence. They are smuggled into Yugoslavia (where this film was made) to conduct several commando raids against the Nazi invaders. The quintet is comprised of veterans of internationally-produced war films: Stewart Granger, Raf Vallone, Mickey Rooney, Edd "Kookie" Byrnes and Henry Silva (observe the cast and guess who gets killed first). Corman's skill at generating excitement through quick cutting and careful camera composition is given an exhilarating workout in The Secret Invasion.
~ Hal Erickson, All Movie Guide