'Happy Death Day 2U' trivia and fun facts

Origins?

This film may reveal how the time loop in the previous one got started in the first place as director Christopher Landon has stated that he plans to save the reason for a sequel.

Starting right when the previous one ends

According to director Christopher Landon, he says: "The sequel will answer questions to the first installment's endless time loop while Rothe has mentioned that part 2 picks up where the first film left off in a Back to the Future-like style."