Given the question: Build a movie plot around this: Who is the captain of the steamer Rita ? Lucas is the captain of the steamer Rita.
The answer is:
Autographed Julie Adams still featuring the Creature menacing Kay.A geology expedition in the Amazon uncovers fossilized evidence from the Devonian period of a link between land and sea animals: a skeletal hand with webbed fingers. Expedition leader Dr. Carl Maia (Antonio Moreno) visits his friend and former student, Dr. David Reed (Richard Carlson), an ichthyologist. He works at an aquarium in California and has also been a guest at Maia's marine biology institute in Brazil for more than a month. Reed persuades his boss, the financially-minded Dr. Mark Williams (Richard Denning), to fund a return expedition to the Amazon to look for the remainder of the skeleton.The group goes aboard the tramp steamer Rita, which is captained by crusty old Lucas (Nestor Paiva). The expedition consists of David, Carl, and Mark, as well as Reed's girlfriend and colleague, Kay Lawrence (Julie Adams), and another scientist, Dr. Edwin Thompson (Whit Bissell). When they arrive at the camp, they discover that Maia's entire research team has been mysteriously killed while he was away. Lucas suggests it was likely done by a jaguar, but the others are unsure. In fact, the camp was attacked by a piscine amphibious humanoid, a living member of the same species from which the fossil originated. The creature, curious about the expedition, goes to the camp. When its sudden appearance frightens the members, they attack it, and in response the enraged creature kills them.The excavation of the area where Carl found the hand turns up nothing. Mark is ready to give up the search, but David suggests that perhaps thousands of years ago the part of the embankment containing the rest of the skeleton fell into the water and was washed downriver, broken up by the current. Lucas says that the tributary empties into a lagoon. Lucas calls it the "Black Lagoon", a paradise from which no one has ever returned. The scientists decide to risk it, unaware that the amphibious "Gill-man" that killed Carl's assistants earlier has been watching them. Taking...