Complex sentence: He appeared in speaking roles as the genie Ali in 20th Century Fox's 1945 films "Where Do We Go From Here?" and the seal trainer, Professor Winnup in "The Dolly Sisters".
Split into simpler sentences: He appeared in "The Dolly Sisters" as the seal trainer, Professor Winnup. Sheldon appeared in speaking roles as the genie Ali in 20th Century Fox's 1945 films "Where Do We Go From Here?" and the seal trainer, Professor Winnup in "The Dolly Sisters".