In the movie
John Dies at the End (Chase Williamson, 2012) the title character uses a paintball gun as a flame thrower.
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As John (Rob Mays) and Dave (Chase Williamson) prepare to enter the abandoned shopping mall, they gather weapons,
including a WGP Trilogy converted, somehow, into a flamethrower. The tank is a standard 20-ounce CO2, with the word
"PROPANE" painted on it. Why a flamethrower would also need a 50-round GXG Pocket hopper remains unclear.
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Note the marker has no bolt or pin.
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Later, as the pair battle Largeman and other minions in the pit of
Korrok, John draws out the Trilogy. (Still without a bolt or pin.)
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He takes the time to put on a skull-shaped welding mask before lighting the Trilogy with a Bic.
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He then proceeds to burn the minion attacking David.
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Aflame, the minion falls over the railing into the monster's pit. Note the GXG logo on the hopper.