They Came to Rob Las Vegas

Summoning I Am A Fugitive From A Chain Gang, Spanish director Antonio Isasi has Jean Servais (rather than Paul Muni) escaping prison through a swamp, then taken by his crew to psychedelic San Francisco to see his younger brother (Gary Lockwood), opening the improbable crime caper They Came To Rob Las Vegas, 1969.

High-tech action, from Spanish director Antonio Isasi, shooting on the Bay Bridge in San Francisco, with cool but inexplicable movie posters, as Jean Servais and his gang try to rob an armored car, and his younger brother (Gary Lockwood), who argued against the attempt, observes, in They Came To Rob Las Vegas, 1969.

Jumping into a Las Vegas montage after the failed armored car robbery in San Francisco, we find out Gary Lockwood (whose elder brother was killed on the job) is a croupier, and Elke Sommer his customer, and co-hort, in They Came To Rob Las Vegas, 1969, directed by Antonio Isasi-Isasmendi.