#TBT to our 1976 film To Fly! Unlike today's hot air balloons, in 1789 balloons used helium to fly. Greg and the team had to find a helium balloon and an expert pilot to navigate. The helium was provided by the U.S. Navy, who gave it to the team for free because the film also features their Blue Angel Flight Squadron!  .⠀ .⠀ .⠀ #IMAX #documentaryfilm #filmmakers #cinematography #shotonfilm #moviemakers #documentaryfilmmakers #filmcollective #filmproduction #documentary #keepfilmalive #throwback #onlocation #filmcommunity #filmfeed⁣⠀