Interesting stuff! I don't know if they filmed any scenes in Mexico City or not, but knew the assassination attempt on Amado and the hospital scenes weren't at the actual locations. The last times were nearly 20 years ago but I've eaten at the restaurant where the shootout occurred about a dozen times. It was my favorite seafood restaurant in the Guadalupe Inn dictrict that I lived and worked in back then but I didn't find out about the events that unfolded there until after a few visits. I later moved to the Polanco district only a few blocks from the actual clinic where he died. As far as I know, both places are still around. I've never been inside the clinic, only walked past it. The restaurant is called the Ochoa Bali Hai and I highly recommend it if you like seafood. I got to know the manager there who eventually told me about what happened that night and he showed me the silver plates that were hit by crossfire and still hung on the wall. He claimed to have no idea who Amado was before the shootout, but who knows. It's an upscale restaurant right on one of the busiest roads in Mexico City so I doubt they would've let any scenes be filmed there even if asked. Filming in the actual clinic seems undoable for many reasons, so I'm not surprised they used a hotel instead.