Yellowbeard

Here is my rephrased version:

In 1687, the notorious pirate Captain Yellowbeard (played by John Cleese) unleashes his fury on the unsuspecting vessel of El Nebuloso, a Spanish inquisitor. With Moon (actor not specified), his trusted second-in-command, having conceived the daring plan, Yellowbeard seizes a treasure trove from the Spanish Main. However, Moon's overzealousness earns him a severe punishment at the hands of Yellowbeard, who brutally amputates his hand for violating the sacred code of pirate honor.

Twenty years pass, and Yellowbeard finds himself imprisoned in England, where he has managed to keep the location of his buried treasure hidden from his captors and Moon's cunning spy, Gilbert. Commander Clement, a stalwart Royal Navy officer and head of Her Majesty's Secret Service, taunts Yellowbeard by arbitrarily extending his sentence. The pirate seethes with resentment as he awaits his release.

As Yellowbeard prepares to leave the confines of his cell, he seeks out his wife Betty (actress not specified) at her tavern, where he hopes to retrieve the treasure map etched onto his son Dan's scalp. However, Betty has other plans, having secretly tattooed the map onto Dan's head, unaware that it would become a beacon for those seeking to claim the loot.

Meanwhile, Commander Clement and Gilbert each receive intelligence on Yellowbeard's whereabouts, sparking a cat-and-mouse game between the cunning pirate and his pursuers. Blind Pew, an enigmatic informant, tips off Clement to Yellowbeard's trail, only to be exposed by Gilbert as a government agent. The tavern patrons turn against him, but Pew proves adept at deflecting their attacks.

As Yellowbeard renews his quest for treasure, he encounters Dan, now a young man, who volunteers to aid his father in finding the loot. However, Yellowbeard deems Dan unsuitable for piracy due to his upbringing as a gentleman by Lord Lambourne (actor not specified). In a moment of desperation, Yellowbeard attempts to sever only Dan's head, but Clement's men arrive just in time to thwart him.

Dan and Lambourne take refuge with botanist Dr. Gilpin, who is hiding Yellowbeard from the authorities. Together, they devise a plan to disguise the pirate as a botany enthusiast and travel to Jamaica under the guise of an expedition. Betty agrees to cover their tracks for a share of the spoils, but her transparent lies only serve to heighten Commander Clement's suspicions.

As Dan's group books passage in Portsmouth, pursued by Clement, Gilbert, and Moon, they unknowingly fall prey to Moon's Machiavellian schemes. The cunning pirate impresses Dan, Lambourne, and Gilpin into service on the Lady Edith under the command of Captain Hughes (actor not specified). Weeks of brutal discipline at sea follow, during which Dan confronts his cruel tormentor, Mr. Crisp, only to be knocked unconscious.

Yellowbeard, who has secretly stowed away on the ship, intervenes just in time to rescue the map from Crisp's clutches and sends him tumbling into the sea. Moon then reveals to Hughes that Dan is Yellowbeard's son, prompting Hughes to arrest Dan, Lambourne, and Gilpin for conspiracy to mutiny. Moon swiftly engineers a mutiny, installing Dan as captain of the Lady Edith. As night falls, Yellowbeard subtly alters the ship's course, casting suspicion on both Dan and Moon regarding the act.

As Clement's frigate converges with Lady Edith's vessel by sheer coincidence, he seizes the opportunity to conceal his true intentions by hoisting the French flag. Despite being grossly outnumbered and outgunned, Lady Edith refuses to back down, prompting Clement to feign a battle and retreat. This strategic withdrawal allows him to maintain the secrecy of his mission.

Meanwhile, Yellowbeard, Dan, and their companions arrive at an island that matches the cryptic map they possess. However, their peaceful exploration is soon disrupted by the revelation that El Nebuloso has constructed a fortress on the island, and Dan finds himself captured by the cunning pirate's henchmen. Lambourne and Gilpin stumble upon Yellowbeard and launch a surprise attack to rescue Dan, only to discover that Nebuloso's men are either brutally eliminated or rendered powerless by Gilpin's unique botanical extract.

As the situation unfolds, Nebuloso becomes increasingly desperate, holding Dan hostage in an attempt to extract information about the treasure's location. However, Yellowbeard suddenly materializes, and Nebuloso's trepidation quickly turns to terror as he realizes his mistake. In a moment of chaos, Nebuloso inadvertently falls into an acid pool, meeting a gruesome demise.

The arrival of Moon and his men sparks a fierce sword fight, which Yellowbeard quickly abandons in search of the treasure. Meanwhile, Dan is forced to defend himself against Moon's relentless assault, only to be aided by Triola, Nebuloso's daughter, who has inexplicably fallen deeply in love with Dan. With a swift kick, she sends Moon tumbling into the acid pool, buying Dan precious time.

Clement and his marines soon arrive on the island, guided by Betty's expert navigation skills. As the situation spirals out of control, Dan finds himself reunited with Yellowbeard, who has become increasingly disoriented as he retraces his steps to locate the treasure. In a moment of desperation, Yellowbeard resorts to drastic measures, slicing off Dan's hair to double-check their map. This impulsive decision ultimately leads them to uncover the treasure, and in a shocking twist, Yellowbeard reveals his true identity: he is Dan's long-lost father.

As Clement and his men claim the treasure as spoils for the queen, Triola quickly attaches herself to Clement, her affections now focused on the dashing pirate. The stage is set for a dramatic showdown between Dan, Yellowbeard, Lambourne, Gilpin, Betty, and the unpredictable Moon. In the end, it is Dan who emerges victorious, claiming the treasure as his own and donning the Jolly Roger alongside his newfound allies: Lambourne, Gilpin, Betty, and Yellowbeard's ghostly legacy.