Complex sentence: In 1963, a film adaptation entitled "Murder at the Gallop" was released by MGM however this version replaced Poirot with the character of Miss Marple, played by Margaret Rutherford.
Split into simpler sentences: In 1963, a film adaptation entitled "Murder at the Gallop" was released by MGM. However, this version replaced Poirot with the character of Miss Marple, played by Margaret Rutherford.