Answer
In the science fiction thriller film "The Arrival", Charlie Sheen portrays the character of Zane Zaminsky, a radio-astronomer working at the Arecibo Observatory in Puerto Rico. As a skilled and dedicated scientist, Zaminsky plays a pivotal role in the events that unfold as humanity makes contact with an extraterrestrial civilization through mysterious electromagnetic signals. His scientific knowledge and expertise prove instrumental in deciphering the alien communication and understanding their intentions.