Actor Alec Baldwin confirmed this week that he’s returned to work on movies, coming months after an on-set incident in which he allegedly shot and killed a cinematographer. “I haven’t worked since October 21 of last year when this horrible thing happened on the set of this film and the accidental death of our cinematographer Halyna Hutchins,” the former “30 Rock” star was quoted by the Hollywood Reporter as saying. “I still find that hard to say. But I went back to work today for the first time in three and a half months.” “We had our first day today, which is always … tricky,” Baldwin, 63, also said. “I don’t work as much as I used to. I said this before maybe, but you go to work and you forget what you’re supposed to do. I just was like, ‘What do you do? What is acting or any of …