How Do I List My Activities on the Common Application?

I am filling out my Common App and I don't know which order to list my activities. Do I place them in terms of leadership experience, or do I list them with the ones most closely related to my major first? For instance, I am the president of the film club at my school, but I did an economics internship and I plan to be an economics major in college, so I'm not sure whether the leadership (film club) should go first or the econ internship should.
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