"Dolphin Tale 2," starring Winter and Hope, is based on a true Dolphin rescue story that happened at the Clearwater Marine Aquarium. The Florida aquarium is struggling to build a new facility. (Bob Talbot/Warner Bros. Pictures, Alcon Entertainment via AP)

The family-friendly hit “Dolphin Tale,” whose sequel opened in theaters this month, tells the true story of a dolphin who learns to swim without a tail. The movie ends with Winter, the tailless dolphin, helping save the struggling Florida aquarium that rescued her.

In real life, the story has not yet wrapped up so neatly.

Even Hollywood fame could not help Winter escape aquarium politics at a time when live marine animal exhibitions face many questions from the public.

An ambitious proposal to build Winter a new waterfront home was scaled back recently amid concern about expenses and the potential for staged performances like those under fire at SeaWorld’s theme parks.

“Winter can’t do those kind of shows, even if we wanted to, which we don’t,” said David Yates, chief executive officer at her home, the Clearwater Marine Aquarium. “We have never been about big shows. That was a misperception.”

Winter’s latest dilemma started when crowds of tourists showed up to meet the chirping star of the 2011 hit, which featured Harry Connick Jr., Ashley Judd and Morgan Freeman.

Winter had lost her tail when the animal was rescued by the Clearwater Maine Aquarium staff. She learned to swim with a man-made tail. The story of her rescue was brought to the big screen in the hit movie "Dolphin Tale." (Clearwater Marine Aquarium via Reuters)

Cozi Zuehlsdorff, rear, and Nathan Gamble appear in a scene from "Dolphin Tale 2." Attendance at the aquarium has soared since the first film came out in 2011, but the organization did not share the money raised by the film. (Wilson Webb/Warner Bros. Pictures, Alcon Entertainment via AP)

“Dolphin Tale” and “Dolphin Tale 2,” which opened this month, were filmed at the Clearwater aquarium, a sun-bleached former sewage treatment plant that was turned into a marine animal hospital.

Attendance at the attraction in west central Florida soared after the release of the first movie, from about 100,000 visitors in typical years to 750,000 since.

“We are just wildly overcrowded,” Yates said, adding that one-third of the visitors are children with disabilities or families drawn to Winter’s story by their own hardships.

The chance to watch Winter maneuver her amputated tail and exercise with a novel prosthetic tail lured the Main family of Galesburg, Illinois, into planning a Florida vacation.

“We both lost our moms, and we both went through something in our lives but didn’t give up,” Destany Main, 17, said during a visit this month, slurping snowcones with her cousin Macy Main, 8.

The attendance surge helped expand an intensive care unit for turtles and build a dolphin rehabilitation deck at the aquarium, which did not share in the proceeds from the first movie. It earned $72.3 million at theaters in the United States.

The Clearwater Marine Aquarium’s building used to be sewage treatment plant. The staff aims to build a second site in downtown Clearwater and use more of the old building as a hospital for marine animals. (Clearwater Marine Aquarium)

Hada Herring, left, and Abby Stone work with a rescued dolphin at the aquarium. (Clearwater Marine Aquarium)

Yet other amenities remain outdated. There is no permanent ticket center, and it’s hard to maneuver wheelchairs through narrow hallways to view the dolphins underwater.

Winter’s emotional pull could not silence local criticism of a new facility initially estimated to cost $160 million.

Incidents in which trainers have been injured or even killed at other attractions are raising questions internationally about staged marine animal performances, which critics say are stressful for sea mammals and often take place in enclosures that are too small.

Locally, competition for visitors was another concern about the expansion, with the Florida Aquarium’s larger facilities only 45 minutes away in Tampa.

Winter’s keepers last month responded with revised plans calling for a $68 million aquarium. Gone are the proposals for stadium bleachers that raised questions about staged animal performances.

As fundraising ramps up around the sequel’s release, the aquarium now has Hope, another rescued dolphin who co-stars as Winter’s companion in “Dolphin Tale 2.” The movie highlights the aquarium’s motto of “Rescue, Rehab, Release.”

“From a fundraising perspective,” Yates said, “it’s spot on about our mission.”

— Reuters