Question: Leslie Pearce and John Ince, have which mutual occupation?

Context paragraphs:
The Fall Guy (1930 film): The Fall Guy is a 1930 American pre-Code crime drama film, directed by Leslie Pearce and written by Tim Whelan, based upon the Broadway hit "The Fall Guy, a Comedy in Three Acts", written by George Abbott and James Gleason.  It starred Jack Mulhall and Pat O'Malley, and its supporting cast included Mae Clarke, who would become famous the following year when James Cagney pushed a grapefruit into her face in the film, "The Public Enemy".

Chris Pearce (footballer): Christopher Leslie Pearce (born 7 August 1961) is a Welsh former footballer.  A goalkeeper, he made 304 league appearances in a 14-year career in the Football League.

The Stoker (1935 film): The Stoker is a 1935 British comedy film directed by Leslie Pearce and starring Leslie Fuller, Georgie Harris and Phyllis Clare.

The Planter: The Planter is a lost 1917 silent film drama directed by Thomas N. Heffron and John Ince.  It was produced by F. N. Manson and Harry Drum and distributed through Mutual.

Blue of the Night: Blue of the Night is a 1932 Mack Sennett Star Comedy (No.  S3628) starring Bing Crosby and directed by Leslie Pearce.  This was the last of the six short films Crosby made for Mack Sennett and which helped launch his career as a solo performer.

Billboard Girl: Billboard Girl is a 1932 Educational-Mack Sennett Featurette (No.  S2709) starring Bing Crosby and directed by Leslie Pearce.  This was the fourth of the six short films Crosby made for Mack Sennett and which helped launch his career as a solo performer.

John Ince (actor): John Ince, also known as John E. Ince, (August 29, 1878 – April 10, 1947) was an American stage and motion pictures actor, a film director, and the eldest brother of Thomas H. Ince and Ralph Ince.

L. Pearce Williams: Leslie Pearce Williams (September 8, 1927 – February 8, 2015) was a chaired professor at Cornell University's Department of History who also chaired the department for many years.  He was also the founder, in the mid-1980s, of Cornell's program in the History and Philosophy of Science and Technology, which later became part of the Department of Science and Technology Studies.

Leslie Pearce: Arnold Leslie Pearce (20 April 1887 – 17 August 1977) was a New Zealand film director, who directed numerous short films in Hollywood during the 1930's, including several with W.C. Fields and Bing Crosby.

Ralph Ince: Ralph Ince (January 16, 1887 – April 10, 1937) was an American pioneer film actor, director and screenwriter whose career began near the dawn of the silent film era.  Ralph Ince was the brother of John Ince and Thomas H. Ince.

Supporting paragraphs: Leslie Pearce John Ince (actor)
Answer: film director