5 Weeks in a Balloon An elderly English doctor and his 14-year old American nephew go on a perilous journey to Africa in an hot air balloon with an African guide, to retrieve a precious diamond from the top of a volcanic rock, as a gift for Queen Victoria. Details Casts Galleries Posters Title 5 Weeks in a Balloon Release Date 1977-01-01 Runtime 01 Hours 00 Minutes Genres Animation Adventure Production Companies Hanna-Barbera Australia Production Countries Australia, United States of America Booker Bradshaw... ... Cathleen Cordell... ... Johnny Haymer... ... Loren Lester... ... Laurie Main... ... John Stephenson... ... Gene Whittington... ... Original Size (1280x720) Original Size (500x750) Original Size (1200x1980)