The Arriflex 16S was the go-to 16mm film camera for documentary and TV news. It takes 100ft spools internally or a 400ft external magazine which ran for about eleven minutes.
The Arri 16 has a three-lens turret and is battery operated. It's quite a noisy running camera, so I will supply an audio track of it running for you to drop into the mix.
Comes with Universal/Miller wooden tripod and a shoulder mount for handheld filming.