Original sentence: This was also the first of several films that Lancaster and Douglas made together over the decades, including Gunfight at the OK Corral (1957), The Devil's Disciple (1959), Seven Days in May (1964), and Tough Guys (1986), all of which fixed the notion of the pair as something of a team in the public's imagination; Douglas was always second-billed under Lancaster in these movies but, with the exception of I Walk Alone, their roles were usually more or less the same size
Edited sentence: This was also the first of several films that Lancaster and Douglas made together over the decades, including Gunfight at the OK Corral (1957), The Devil's Disciple (1959), Seven Days in May (1964), and Tough Guys (1986), all of which fixed the notion of the pair as something of a team in the public's imagination; Douglas was always billed under Lancaster in these movies but, with the exception of I Walk Alone, their roles were usually more or less the same size