Guinn Terrell Williams Jr. was an American actor who appeared in memorable westerns such as Dodge City (1939), Santa Fe Trail (1940), and The Comancheros (1961). He was nicknamed "Big Boy" as he was 6' 2" and had a muscular build from years of working on ranches and playing semi-pro and professional baseball, and at the height of his movie career was frequently billed above the title simply as Big Boy Williams or as "Big Boy" Guinn Williams on posters and in the film itself.

The Alamo is a 1960 American epic historical war film about the 1836 Battle of the Alamo produced and directed by John Wayne and starring Wayne as Davy Crockett. The film also co-stars Richard Widmark as Jim Bowie and Laurence Harvey as William B. Travis, and features Frankie Avalon, Patrick Wayne, Linda Cristal, Joan O'Brien, Chill Wills, Joseph Calleia, Ken Curtis, Ruben Padilla as Santa Anna, and Richard Boone as Sam Houston. Shot in 70 mm Todd-AO by William H. Clothier, it was released by United Artists.