The first appearance of Superman on the big screen in this 1941 cartoon

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The Fleischer & Famous Superman cartoons are a series of seventeen animated Technicolor short films released by Paramount Pictures and based upon the comic book character Superman.
The pilot and first eight shorts were produced by Fleischer Studios from 1941 to 1942, while the final eight were produced by Famous Studios, a successor company to Fleischer Studios, from 1942 to 1943. Superman was the final animated series initiated under Fleischer Studios, before Famous Studios officially took over production in May 1942.

The Fleischer cartoons were also responsible for Superman being able to fly. When they started work on the series, Superman could only leap from place to place (hence “Able to leap tall buildings in a single bound” in the opening). But they deemed it as “silly looking” after seeing it animated and decided with Detective Comics Inc.’s permission, to have him fly instead.