1939’s Gone with the Wind is the longest film (running time) to win an Oscar for Best Picture. The total run time for this film is 238 Minutes. The actual run time for Gone with the Wind without its overture, intermission, and entr'acte is just under 222 minutes. However, when the overture, intermission, entr'acte, and exit music are included, Gone with the Wind lasts for 238 minutes (all of these elements from start to finish are part of its full length time).

The other films listed all have a viewing time that hovers around three and a half hours. Lawrence of Arabia (1962), which won seven Oscars, runs 216 minutes. Next,

Ben-Hur (1959) won eleven Oscars and has a viewing time of 212 minutes. With The Lord of the Rings: The Return of the King (2003), its running time is 201 minutes. Plus it has also won eleven Oscars just like Ben-Hur.

Today, when fans rate these films, many state that they want each film (Gone with the Wind, Lawrence of Arabia, Ben-Hur, and The Lord of the Rings: The Return of the King) to be even longer in length. These films are seem by fans as great towering landmarks, quite simply because each one tells a good story, and each tells it wonderfully way.

More Info: en.wikipedia.org