Complex sentence: Elmer would later go on to star in a serial in the "Silly Symphonies" comic strip, even getting his own short-lived strip, and like the Three Little Pigs before him, he would also become a popular character in merchandising.
Split into simpler sentences: Elmer would later go on to star in a serial in the "Silly Symphonies" comic strip, even getting his own strip which did not last long. And like the Three Little Pigs before him, he would also become a popular character in merchandising.