movie car registry???

does anyone here know if there is a way to find out if a particular car was possibly in a movie? the story is or, i should say was, when my brother bought his dart sport, that it had been in a movie. it had a fairly decent looking stripe painted on it and it looked ok i guess. but the owner had insisted that it was a movei car. no big deal i guess, but i was wondering. it might be cool to see the movie, and see the car though. any ideas?