I just watched a movie in which the main character is in a church that has a crucifix on the wall, but the service looked neither Catholic nor Orthodox. I have heard that perhaps Lutheran and Anglicans do this as well, but I don't know how to verify this.
As you suggest in your question, the use of a Crucifix with a model of the crucified Jesus on it is typically something you find in Catholic and Orthodox traditions. There is quite a big of variance on the design and usage of these, but the practice is fairly restricted to those traditions.
In places with heavy Catholic or Orthodox influence (such as Italy) you will find crucifixes in other places outside of the church including businesses and even government institutions such as law courts. It is also quite common to have these icons in homes.
I do not know of any modern Protestant tradition that uses the crucifix as opposed to an empty cross. There might be individual cases where a local church, for whatever reason, makes a choice to do something out of the normal, but as a whole most non-Catholic/Orthodox traditions do not use a crucifix.
The issue of what you see in the movies is entirely separate. They are less worried about being faithful to represent some specific tradition and more worried about giving a general impression. They tend to put together whatever they can find and mix and match traditions in order to have "something for everyone" on screen. What you see represented on the silver screen should be discarded when actually examining what makes up a given church tradition.
Lutherans consider the crucifix to be a powerful reminder of the sacrifice of Christ for our salvation. The Apostle Paul says in 1st Corinthians, chapter 1: “We preach Christ and Him crucified.”
The history of Lutheranism demonstrates that the crucifix was a regular and routine feature of Lutheran worship and devotional life during Luther’s lifetime and during the period of Lutheran Orthdoxy. It was also the case among the founding fathers of the Lutheran Church—Missouri Synod.
Some Lutherans began to move away from crucifixes during the age of Lutheran Pietism, which rejected much of Lutheran doctrine and consequently many Lutheran worship practices. At the time, Lutheran Pietists, contrary to the clear postion of Luther and the earlier Lutherns, held that symbols such as the crucifix were wrong. This was never the view of historic Lutheranism.