Question: Which of Ian Charleson's movies did he play a character who was a Scottish athlete and rugby union international player?

Context paragraphs:
Brian Robinson (rugby union): Brian Robinson (born 20 March 1966, in Belfast) is a past pupil of Cambridge House Grammar School in Ballymena and a former Irish rugby union international player who played for the Irish national rugby union team.  He played as a number eight.

Charles Villar: Charles Villar (January 1852 - 21 September 1877) was an English-born Scottish rugby union international player who represented Scotland in the 1875–76 Home Nations rugby union matches and 1876–77 Home Nations rugby union matches.

Barrie-Jon Mather: Barrie-Jon Mather (born 15 January 1973) is a former Great Britain national rugby league team, England rugby league, and England rugby union dual-code international player.  He is best known for being the first Great Britain rugby league international player to be capped by England at rugby union.  He is currently NSWRL's general manager of football.

Henry Melville Napier: Henry Melville Napier (02 May 1854 - 18 December 1940) was a Scottish rugby union international who represented Scotland in the 1876–77 Home Nations rugby union matches, 1877–78 Home Nations rugby union matches, 1878–79 Home Nations rugby union matches and 1879–80 Home Nations rugby union matches.  Napier was also a noted engineer and shipbuilder.

Eric Liddell: Eric Henry Liddell ( ; 16 January 1902 – 21 February 1945) was a Scottish athlete, rugby union international player, and missionary, who chose his religious beliefs over competing in an Olympic race held on a Sunday.

History of rugby union in Scotland: Rugby union in Scotland in its modern form has existed since the mid-19th century.  As with the history of rugby union itself however, it emerged from older traditional forms of football which preceded the codification of the sport.  In the same manner as rugby union in England, rugby union in Scotland would grow at a significant rate to the point where Scotland played England in the first ever rugby union international in 1871, a match which was won by the Scottish team.

Timeline of foundation of national rugby unions: This timeline lists the foundation dates of the national governing bodies for rugby union—known as rugby unions or federations.  The first union was the Rugby Football Union (RFU) that was founded in 1871 to govern rugby union within England.  It was founded following the first ever rugby union international, played between England and Scotland in 1871.  The Scottish Football Union (later renamed the Scottish Rugby Union) was then founded in 1873, the Irish Rugby Football Union in 1879 and the Welsh Rugby Union in 1881.

Gary Halpin: Gary Halpin (born 14 February 1966) in Dublin, is a former Irish rugby union international player who played for the Irish national rugby union team.  He played as a prop.

Ron Waldron: Ronald "Ron" Gwyn Waldron (born 14 December 1933 in Neath Abbey) is a former Welsh rugby union international player.  He later took up coaching and is best known as the former head coach of Neath RFC during the late 1980s when Neath dominated British rugby for a number of seasons.  Waldron built a team of senior international players including Jonathan Davies and Allan Bateman.  In 1990 he was appointed coach to the Wales national rugby union team but after certain players from the Cardiff club found his training methods too physically demanding he resigned in 1991.

Ian Charleson: Ian Charleson (11 August 1949 – 6 January 1990) was a Scottish stage and film actor.  He is best known internationally for his starring role as Olympic athlete and missionary Eric Liddell, in the Oscar-winning 1981 film "Chariots of Fire".  He is also well known for his portrayal of Rev. Charlie Andrews in the 1982 Oscar-winning film "Gandhi".

Supporting paragraphs: Ian Charleson Eric Liddell
Answer: Chariots of Fire