So relational evangelism? Go for it, as long as it turns into real evangelism. You hanging out having a beer with your buddy so he can see that Christians are cool is not what we’re called to do. You’re eventually going to have to open up your mouth and share the gospel. When the pure gospel is shared, people respond.
It's nice being friends over a period of time with people whose music you like so much, or other filmmakers, seeing people change, go through trials