It quickly grew in popularity , surpassing 120 film by the late 1960s to become the most popular photographic film format .
It became more popular than 120 film by the late 1960s .
It became more popular than 120 film by the late 1960s .
Make the sentence simpler: It quickly grew in popularity , surpassing 120 film by the late 1960s to become the most popular photographic film format . Output: