The original Lawrence of Arabia (1962) is one of Steven Spielberg's favorite films. Upon seeing this film, Spielberg cast Ralph Fiennes in Schindler's List (1993).
Joseph Fiennes, in his uncredited debut, plays brother Ralph Fiennes' character Lawrence's younger brother. He had to sneak out of school during a lunch break to play the bit-part.
Rick Berman cast Alexander Siddig as Dr. Julian Bashir in Star Trek: Deep Space Nine (1993) after seeing him in this movie.