Just finished watching Midnight Express. I don't know how famous it is and how many in here have seen it. Basically: A young American man travels to Turkey in the 70's. Get's caught in the airport with several kilos of hash. Spends many years in prison hell hole.
Sort of cheesy soundtrack and the acting gets a bit melodramatic, but overall a very good movie. There's a few things that aren't exactly believeable about it, so definitely "based on true events" rather than an accurate representation of what really happened.