You are using the future tense to describe a visit that you will make to a movie theatre. PLEASE CHECK THE BOLDED SPANISH SENTENCES FOR PROPER GRAMMAR, VERB, TENSE, AND STRUCTURE.
El próximo lunes, observaré a los Guardianes de la galaxia en el teatro reginal 32 en homestead a las 3:30 pm. Comeré palomitas de maíz y beberé refresco.