. According to
Richard Brooks (in an interview filmed for the 1988
Bacall on Bogart documentary),
Battle Circus was originally called
MASH 66, a title rejected by
MGM because the studio thought people would not understand the connection to a military hospital. The title of the film actually refers to the speed and ease with which a MASH unit, with its assemblage of tents, and portable equipment, can, like a
circus, pick up stakes and move to where the action is. The film's technical advisor, Col. K. E. Van Buskirk, had commanded one of the first MASH units in Korea, and ensured that the MASH and aerial scenes were authentic. Brooks also noted that
Humphrey Bogart agreed to do the film because the script's humor, set in a story showing the tragedy of war, would make the film seem more realistic to an audience. Bogart was teamed with an old pal,
Keenan Wynn and
June Allyson who was also a friend. Allyson was initially afraid of acting with Bogart, but her recent roles in light romantic comedy had
typecast her and she was encouraged by the studio to attempt more serious fare. His $250,000 fee was the sole compensation. Principal photography took place on location in
Calabasas, California, and
Camp Pickett, Virginia, where MASH units trained. The aerial sequences with the
Bell 47 helicopters were filmed there. The camp commandant offered the film crews use of the base facilities, including his house for the lead actors, after initial scenes were finished. The film's sets were designed by the
art director James Basevi. ==Box office and reception==