Luke Halpin and Hilarie Thompson in If It's Tuesday, This Must Be Belgium (1969)

Hilarie Thompson in If It's Tuesday, This Must Be Belgium (1969)

Suzanne Pleshette in If It's Tuesday, This Must Be Belgium (1969)

Murray Hamilton, Ian McShane, Suzanne Pleshette, and Hilarie Thompson in If It's Tuesday, This Must Be Belgium (1969)

Ian McShane and Suzanne Pleshette in If It's Tuesday, This Must Be Belgium (1969)

If It's Tuesday, This Must Be Belgium (1969)

Norman Fell, Sandy Baron, Peggy Cass, Michael Constantine, Murray Hamilton, Suzanne Pleshette, and Hilarie Thompson in If It's Tuesday, This Must Be Belgium (1969)

Suzanne Pleshette and Mel Stuart at an event for If It's Tuesday, This Must Be Belgium (1969)