在其導演生涯的巔峰時期,惠爾執導了《回歸之路(英语:The Road Back (film))》(1937年),這是《西線無戰事》的續集。可能是受到來自納粹德國的政治壓力的刺激,製片廠的干預導致影片被改變了惠爾的設想,而這是一個重大的失敗。隨後,他的票房表現令人失望,雖然他將在1950年拍攝最後一部短片,但到1941年,他的電影導演生涯實際上已經結束。他繼續擔任舞台導演,並重新發現他對繪畫和旅行的熱愛。他的投資使他變得富有,他過著舒適的退休生活,直到1956年中風後奪走了他的活力,使他痛苦不堪。1957年5月29日,他在自家的游泳池中投水自殺,享年67歲。
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