Complex sentence: Asher became a fully fledged director with the Norman Wisdom vehicle "Follow a Star" (1959) where he followed John Paddy Carstairs as the overseer of the Wisdom films concluding in 1966 with "Press for Time".
Split into simpler sentences: Asher became a solo director with the Norman Wisdom vehicle "Follow a Star" (1959). He followed John Paddy Carstairs as the overseer of the Wisdom films, concluding in 1966 with "Press for Time".