Dennis Hopper - Catchfire aka Backtrack (1990)

Quote:
An artist (Foster) witnesses a Mafia hit and calls the police. At the police station she realizes that the Mafia has a man in the force, so she runs. Trailed by the police, who need her testimony, and a hitman (Hopper) hired by the Mafia, she goes to Mexico, where eventually she meets the hitman, who has become infatuated after studying her art and life to prepare for the hit.