Le convoi (Convoy) - Fr - 1978.

Rubber Duck lives by the momentum of the open road, but his internal compass is permanently skewed toward confrontation. When a predatory lawman pushes a vulnerable friend too far, Duck's hair-trigger temper ignites a brawl that leaves the local precinct in ruins. Forced into a high speed exodus, he retreats into the steel cab of his rig. His defining vice is a refusal to yield to any authority, even when his cargo is a ticking bomb. This stubborn pride draws a legion of followers to his rear bumper, turning a personal grudge into a public crusade. He risks the lives of his peers to maintain a facade of freedom, eventually facing a bridge he cannot cross without total self destruction.