Man-Thing is one of Marvel's great Marmite characters, some love him, others hate him, I did not take to the character at first preferring DC's Swamp Thing but having re-read the original stories many years later I got to liking old Ted Sallis.
Although the film drops plenty nods towards the comic, a missing Ted Sallis, the greedy businessman F.A.Schist (Jack Thompson), a reference to the Nexus of All Realities and characters named after his creators Steve Gerber, Mike Ploog and Val Meyerick it never quite hits the target.
The creature, although it appears to be aiding the native inhabitants of the swanp never shows any of the empathic nature that was essential to the comic, no one here burns at the Man Thing's touch but there's plenty death by vegetation.
There's no background story to the creature itself and only a hint or two at any possible connection to the missing Ted Sallis.
Sadly the two early Swamp Thing movies
Swamp Thing [DVD] [1981] and
The Return Of Swamp Thing [DVD] [1988] make this attempt look quite shoddy, partly because they were largely played for fun.
As a general swamp creature on the prowl movie it's OK, as an adaptation of a cult comic book it fails but fair credit to them for having an attempt.