Rome, Italy (CNN) A cruise ship crashed into a Venice dock on Sunday, hitting a moored tourist boat and sending onlookers running for safety in what one witness said resembled a “scene from a disaster movie.” The cruise ship, MSC Opera, rammed into the San Basilio terminal, and hit a smaller tourist boat — the River Countess — that was docked there, the local port authority told CNN. Four people suffered “light injuries” in the accident, it said. The incident happened at around 8.30am local time on the Giudecca canal, one of the busiest in the Italian city which is hugely…