Question: Are both Robert Stevenson and Am Rong a filmmaker?

Context paragraphs:
Dunnet Head lighthouse: Dunnet Head Lighthouse is an active 19th century lighthouse that stands on the 300 ft cliff top of Easter Head on Dunnet Head.  The lighthouse is 20 m tall and was built in 1831 by Robert Stevenson, grandfather of Robert Louis Stevenson.  The lighthouse was automated in 1989, and the keepers were withdrawn.  It is now checked remotely by the Northern Lighthouse Board operations centre in Edinburgh.

Coke R. Stevenson: Coke Robert Stevenson (March 20, 1888 – June 28, 1975) was the 35th Governor of Texas from 1941 to 1947.  He was the only 20th century Texan politician to serve as Speaker of the Texas House of Representatives, as lieutenant governor, and then as governor.  In 1966, Recorded Texas Historic Landmark marker number 5118, honoring Stevenson, was placed on the Kimble County Courthouse grounds in Junction, Texas.

My Forbidden Past: My Forbidden Past is a 1951 film directed by Robert Stevenson.  It stars Robert Mitchum and Ava Gardner.  Adapted from Polan Banks novel "Carriage Entrance" by Leopold Atlas.

Stevenson College, Edinburgh: Stevenson College Edinburgh, was a further education college in Edinburgh, Scotland.  It was founded in 1970, and was named after famous Scottish engineer, Robert Stevenson.  In 2012 it merged with Telford College and Jewel & Esk College to form part of the newly established Edinburgh College.

Am Rong: Am Rong (1929 – May 1975) was a Cambodian soldier and filmmaker, who acted as a spokesman on military matters for the Khmer Republic during the Cambodian Civil War.  Western journalists commented on the irony of his name as he gave briefings which "painted a rosy picture of the increasingly desperate situation on the ground" during the war.

The Woman on Pier 13: The Woman on Pier 13 is a 1949 American film noir drama directed by Robert Stevenson, and featuring Laraine Day, Robert Ryan and John Agar.  It previewed in Los Angeles and San Francisco in 1949 under the title I Married a Communist, but the name was changed prior to its 1950 release due to poor polling among those preview audiences.

Point of Ayre Lighthouse: The Point of Ayre Lighthouse is an active 19th century lighthouse, sited at the Point of Ayre at the north-eastern end of the Isle of Man.  It was designed and built by Robert Stevenson, grandfather of prolific writer and novelist Robert Louis Stevenson, and was first lit in 1818, making it the oldest operational lighthouse on the island.

Return to Yesterday: Return to Yesterday is a 1940 British comedy-drama film directed by Robert Stevenson and starring Clive Brook and Anna Lee.  It was based on Robert Morley's play "Goodness, How Sad".  The film was made at Ealing Studios.

The Las Vegas Story (film): The Las Vegas Story is a 1952 suspense film noir starring Jane Russell and Victor Mature, directed by Robert Stevenson and produced by Robert Sparks and Howard Hughes with Samuel Bischoff as the executive producer.

Robert Stevenson (director): Robert Stevenson (31 March 1905 – 30 April 1986) was an English film writer and director.  He was educated at Cambridge University where he became the president of both the Liberal Club and the Cambridge Union Society.

Supporting paragraphs: Robert Stevenson (director) Am Rong
Answer: yes