Gu Long’s novels were adapted to film and into TV series many times. I compiled a list of nearly all of them. Some links go directly to Youtube where you can watch the film/series. Others go to MyDramaList, a database for Asian series and films. Some go to Wikipedia or Hong Kong Movie Database.
Many of these are available with English subtitles or dubbed in English, either via DVD or various streaming services. Some TV series have English subs you can find online. You will need to google these and/or check streaming services yourself. The novels are listed in chronological order by publication.
Wafting Scent in a Storm of Swords 飄香劍雨
The Lost Swordship (Film, 1978)
The Lost Swordship (TV, 2018)
Eerie Moon, Evil Star 月異星邪
Chivalry Deadly Feud (Film, 1981)
Flower Guarding Bell 護花鈴
Beauty Escort (Film, 1979)
Lover’s Arrow 情人箭
情人箭 Cupid Strike (TV, 1979)
Legend of the Banner Hero 大旗英雄傳
Clan Feuds (Film, 1982)
大旗英雄傳 (TV, 1986)
Tolerant Hero (TV, 1987)
The Sect of Blood and Iron (TV, 1989)
Banner Hero (TV, 2007) – Chinese subs only
Cleansing Flowers, Refining the Sword 浣花洗劍錄
The Spirit of the Sword (TV, 1978)
The Spirit of the Sword (Film, 1982)
The Spirit of the Sword (TV, 2007)
Unofficial History of the Wulin 武林外史
武林外史 (TV, 1977)
武林外史 (TV, 1983)
武林外史 (TV, 1986)
武林外史 (TV, 2001)
Legendary Siblings 絕代雙驕
The Jade Faced Assassin (Film, 1971)
絕代雙驕 (TV, 1977)
The Twins (TV, 1979)
The Proud Twins (Film, 1979)
新絕代雙驕 (TV, 1986)
Two Most Honourable Knights (TV, 1988)
Handsome Siblings (Film, 1992)
The Legendary Siblings (TV, 1999)
The Legendary Siblingss/Amazing Twins (TV, 2002)
The Proud Twins (TV, 2005)
Handsome Siblings (TV, 2020) – also available on Netflix
The Sword and Exquisiteness 名劍風流
The Sword of Romance (Film, 1979)
名劍風流 (TV, 1979) – Cantonese
A Sword Named Revenge (Film, 1981) – Chinese audio
名劍風流 (TV, 1985)
Chu Liuxiang 楚留香
Clans of Intrigue (Film, 1977)
Legend of the Bat (Film, 1978)
The Legend of Broken Sword/Dressed to Fight (Film, 1979)
Chor Lau Heung, (TV, 1979)
It Takes a Thief (TV, 1979) – Cantonese
Chu Liu Hsiang and Hu Tieh Hua (Film, 1980)
Legend of Chu Liu Hsiang (Film, 1980)
Everlasting Chivalry (Film, 1980)
The Young Moon Legend (Film, 1980)
Perils of the Sentimental Swordsman (Film, 1982) – plot actually from Lu Xiaofeng novel
The Challenger/Abbott White 2 (Film, 1982)
Night Orchid/Master of Flying Daggers (Film, 1982)
Swordsman’s Adventure (Film, 1983)
The Denouement of Chu Liu Hsiang (Film, 1983)
New Adventure of Chor Lau Heung (TV, 1984)
Chor Lau-heung (TV, 1985)
Legend of the Liquid Sword (Film, 1993)
Chor Lau-heung (TV, 1995)
The New Adventures of Chor Lau-heung (TV, 2001) – Cantonese
The Legend of Chu Liuxiang (TV, 2007)
New Legend of Chu Liuxiang (TV, 2013)
The New Legend of Chu Liuxiang (TV, 2022)
Sentimental Swordsman, Ruthless Sword 多情劍客無情劍
The Sentimental Swordsman (Film, 1977)
The Romantic Swordsman (TV, 1978)
Flying Sword Lee (Film, 1979)
Return of the Sentimental Swordsman (Film, 1981)
小李飛刀 (TV, 1982)
The Romantic Swordsman (TV, 1995)
Legend of Dagger Lee (TV, 1999)
The Legend of the Flying Swordsman (Film, 2000)
The Eleventh Son 蕭十一郎
Swordsman at Large (Film 1971)
蕭十一郎 (TV, 1971)
Swordsman and Enchantress (Film 1978)
蕭十一郎 (TV, 1983)
Treasure Raiders (TV, 2002)
Treasure Raiders (TV, 2005)
The Shaw Eleven Lang (TV, 2016)
Happy Heroes 歡樂英雄
Growing Pains of Swordsmen (TV, 2022?)
Meteor, Butterfly, Sword 流星·蝴蝶·劍
Killer Clans (Film, 1976)
流星蝴蝶劍 (TV, 1978)
Butterfly and Sword (Film, 1993)
Butterfly Sword (Film, 1993)
Meteor, Butterfly, Sword (TV, 2002)
Meteor, Butterfly, Sword (TV, 2010)
The Celebrity 大人物
Big Shot (TV, 2007)
Bordertown Wanderer 邊城浪子
The Black Sabre (TV, 1989)
A Warrior’s Tragedy (Film, 1993)
Border Town Prodigal (TV, 2016)
Longevity Sword 長生劍
Pai Yu-ching/The Lethal Bladesman (Film, 1977)
Peacock Feather 孔雀翎
Awe Inspiring Weapon (Film, 1980)
The Holy Dragon Saga (TV, 1994)
The Peacock Feather (TV, 2011)
Green Jade Sabre 碧玉刀
Bruce Tuan’s 7 Promises (Film, 1980)
Amorous Rings 多情環
The Romantic Double Rings (Film, 1979)
Hegemon Spear 霸王槍
The Fallen Family (TV, 1984) – Combines this novel and Flying Dagger Reappears
Lu Xiaofeng 陸小鳳
Luk Siu-fung (TV, 1976)
Clan of Amazons (Film, 1978)
Lu Hsiao Fury/Chivalry of Conspiracy (Film, 1979)
Legend of Lu Xiao Fong (Film, 1980)
The Duel of the Century (Film, 1981)
The Last Duel (Film, 1981)
The Return of Luk Siu-fung (TV, 1986)
Clan of Amazons/The Phoenix Dances in the Nine Heavens (Film, 1996)
The Duel (Film, 2000)
Master Swordsman Lu Xiaofeng (TV, 2001)
Master Swordsman Lu Xiaofeng 2 (TV, 2001)
The Master Swordsman Returns (Film, 2002)
The Legend of Lu Xiaofeng (TV, 2006)
Legend of Lu Xiaofeng: Phoenix Dances in Nine Heavens (Film, 2006)
Detectives and Doctors (TV, 2015)
Never Lower Your Head 絕不低頭
To Kill a Jaguar (Film, 1977)
Eagles Soar in the Ninth Month 九月鷹飛
Gold Dagger Romance (TV, 1978)
Eagle Flying in September (Film, 1981)
Condor in September (TV, 1986)
Sword, Flowers, Mist, Jiangnan 劍‧花‧煙雨‧江南
To Kill With Intrigue (Film, 1977)
Horizon, Bright Moon, Sabre 天涯‧明月‧刀
The Magic Blade (Film, 1976)
The Magic Blade (TV, 1985) – Cantonese
The Legend of Fu Hung Suet (TV, 1989)
The Magic Blade (TV, 2012)
Blood Parrot 血鸚鵡
Bloody Parrot (Film, 1981)
Sword of the Third Young Master 三少爺的劍
Death Duel (Film, 1977)
三少爺的劍 (TV, 1977)
三少爺的劍 (TV, 2000)
Sword Master (Film, 2016)
The Jade Tiger 白玉老虎
Jade Tiger (Film, 1977)
The Green Dragon Conspiracy (TV, 1982) – Cantonese
Full Moon Scimitar 圓月彎刀
Full Moon Scimitar (Film, 1979)
God of Sabre (TV, 1979)
Against the Blade of Honour (TV, 1995)
Against the Blade of Honour (TV, 2012) – Never aired
Righteous Blood Cleanses the Silver Spear 碧血洗銀槍
Silver Hermit from Shaolin/The Silver Spear (Film, 1979)
Beware Your Bosom Buddies (TV, 1984)
Land of Soaring Eagles 大地飛鷹
Big Land Flying Eagles (Film, 1978)
Land of the Condors (TV, 1992)
Parting Hook Sword 離別鉤
The Deadly Sword/Lethal Hook (TV, 1980)
Heroes Shed No Tears 英雄無淚
英雄無淚 (TV, 1979)
Heroes Shed No Tears (Film, 1980)
Hero Without Tears (TV, 1984)
Tearful Sword (TV, 2006)
Flying Dagger, The Flying Dagger Reappears
飛刀，又見飛刀
Return of the Deadly Blade (Film, 1981)
A Sword Shot at the Sun (Film, 1982)
Flying Daggers (TV, 2003)
The Legend of Flying Daggers (TV, 2016)
Sound of the Sabre Amidst the Wind Chimes
風鈴中的刀聲
Sword of Wind Chimes (Film, 1983)