A Carrie Fisher cruise gone wrong has left many wondering if the Star Wars actress has lost it.

Fisher was what Queerty.com called "the super-secret headline" in a RSVP Caribbean cruise. Drag queens aboard the Holland America Eurodam were disgusted when Fisher came out on the main stage Saturday night, "trashed and incoherent."

One source told Queerty.com:

"Some gays started seeing her act weird earlier in Half Moon Bay-swimming with all her clothes on. Carrie showed up to her 8:30pm show trashed and incoherent. Her dog joins her on the stage-only to [defecate twice]. As audience members began to leave, she started chasing them out of the auditorium. They shut down the remainder of the show and cancelled her 10:30pm show. Obviously the gays love the drama-it was the only time you saw anyone spend the $16-per-minute on Internet service to tell their friends back home."

One commenter on CruiseCritic.com suggests Fisher, who has bipolar disorder, may have been having a manic episode: "Please be understanding with Carrie. She was not under any influence... Those of us who know people with the same situation knew right away what was happening. She was in one of those highs and it can appear to be other causes."

But another poster expressed different thoughts, noting that when things got awkward, some passengers wanted to leave. As they began making their way for the exit, Fisher shouted at them to stop. The poster wrote, "The star jumped from the stage and ran down the aisle to stop them."

Fisher recently told The Palm Beach Daily News that it's been rough for her to stay free of drugs.

"It doesn't go away. It's an ongoing thing to battle," Fisher told the paper, adding that she also has to keep her bipolar disorder in check. "So it's a question of maintaining and watching out for it. You can't just say, 'That was difficult, so let's now move on to fun.'"

Carrie Fisher and Star Wars co-star Mark Hamill have been linked to the cast of a potential new Star Wars film, but she may have hurt her chances because of her behavior on the cruise ship, The Christian Post reported.

Fisher has not yet said anything publicly about the new Star Wars movie.