The first words spoken in the film are by Hailey narrating, and she says "My parents named me after Haileys comet."
It is in fact Halley's comet, not Hailey's.
She goes on to say she is a scientist now so she should know that.
Hailey narrates at the beginning of the film "I have always been fascinated by my interstellar namesake" referring to Halley's comet. In fact there are no comets known to science that are interstellar, although there has been no decision yet on C/2017 U1 (Panstarrs). Halleys is a short period, not an interstellar object.