Answer the question at the end by quoting:

Kermit the Frog is a Muppet character and Jim Henson's most well-known creation. Introduced in 1955, Kermit serves as the straight man protagonist of numerous Muppet productions, most notably Sesame Street and The Muppet Show, as well as in other television series, films, specials, and public service announcements through the years. Henson originally performed Kermit until his death in 1990; Steve Whitmire performed Kermit from that time up until his dismissal from the role in 2016.
A biography has been developed for Kermit the Frog as if he was an actual living performer rather than a puppet character. According to this fictional biography, he was born in Leland, Mississippi alongside approximately 2,353 siblings, though a 2011 "interview" on The Ellen DeGeneres Show has him state that he was from the swamps of Louisiana. As portrayed in the 2002 film Kermit's Swamp Years, at the age of 12, he was the first of his siblings to leave the swamp, and one of the first frogs to talk to humans. He is shown in the film encountering a 12-year-old Jim Henson (played by Christian Kriebel) for the first time. According to The Muppet Movie, Kermit returned to the swamp, where a passing agent (Dom DeLuise) noted he had talent and, thus inspired, he headed to Hollywood, encountering the rest of the Muppets along the way. Together, they were given a standard "rich and famous" contract by Lew Lord (Orson Welles) of Wide World Studios and began their showbiz careers. In Before You Leap, Kermit again references encountering Jim Henson sometime after the events depicted in the course of The Muppet Movie and details their friendship and their partnership in the entertainment industry, crediting Henson as being the individual to whom he owes his fame. At some point after the events of The Muppet Movie, Kermit and the other Muppets begin The Muppet Show, and the characters remain together as a group, before starring in the other Muppet films and Muppets Tonight, with Kermit usually at the core of the stories as the lead protagonist. Kermit is shown in The Muppet Movie as stating that the events of the film are "approximate to how it happened" when asked by his nephew Robin about how the Muppets got started. Fozzie Bear is portrayed as Kermit's best friend--a fact reiterated by Kermit in Before You Leap--and the two were frequently seen together during sketches on The Muppet Show and in other Muppet-related media and merchandise. On August 4, 2015, Kermit the Frog and Miss Piggy "announced" that they had ended their romantic relationship. On September 2, 2015, Kermit was stated to have found a new girlfriend, a pig named Denise, but around February 2016, Denise supposedly broke up with Kermit after almost six months together.

How did they get into movies?

Together, they were given a standard "rich and famous" contract by Lew Lord (Orson Welles) of Wide World Studios and began their showbiz careers.

Answer the question at the end by quoting:

Joseph Frank "Buster" Keaton (October 4, 1895 - February 1, 1966) was an American actor, comedian, film director, producer, screenwriter, and stunt performer. He was best known for his silent films, in which his trademark was physical comedy with a consistently stoic, deadpan expression, earning him the nickname "The Great Stone Face". Critic Roger Ebert wrote of Keaton's "extraordinary period from 1920 to 1929, [when] he worked without interruption on a series of films that make him, arguably, the greatest actor-director in the history of the movies". His career declined afterward with a dispiriting loss of his artistic independence when he was hired by Metro-Goldwyn-Mayer and he descended into alcoholism, ruining his family life.
Keaton's personal life had stabilized with his 1940 marriage, and now he was taking life a little easier, abandoning Columbia for the less strenuous field of feature films. Throughout the 1940s, Keaton played character roles in both "A" and "B" features. He made his last starring feature El Moderno Barba Azul (1946) in Mexico; the film was a low budget production, and it may not have been seen in the United States until its release on VHS in the 1980s, under the title Boom in the Moon. Critics rediscovered Keaton in 1949 and producers occasionally hired him for bigger "prestige" pictures. He had cameos in such films as In the Good Old Summertime (1949), Sunset Boulevard (1950), and Around the World in 80 Days (1956). In In The Good Old Summertime, Keaton personally directed the stars Judy Garland and Van Johnson in their first scene together where they bump into each other on the street. Keaton invented comedy bits where Johnson keeps trying to apologize to a seething Garland, but winds up messing up her hairdo and tearing her dress. Keaton also had a cameo as Jimmy, appearing near the end of the film It's a Mad, Mad, Mad, Mad World (1963). Jimmy assists Spencer Tracy's character, Captain C. G. Culpepper, by readying Culpepper's ultimately-unused boat for his abortive escape. (The restored version of that film, released in 2013, contains a restored scene where Jimmy and Culpeper talk on the telephone. Lost after the comedy epic's "roadshow" exhibition, the audio of that scene was discovered, and combined with still pictures to recreate the scene.) Keaton was given more screen time in A Funny Thing Happened on the Way to the Forum (1966). The appearance, since it was released after his death, was his posthumous swansong. Keaton also appeared in a comedy routine about two inept stage musicians in Charlie Chaplin's Limelight (1952), recalling the vaudeville of The Playhouse. With the exception of Seeing Stars, a minor publicity film produced in 1922, Limelight was the only time in which the two would ever appear together on film. In 1949, comedian Ed Wynn invited Keaton to appear on his CBS Television comedy-variety show, The Ed Wynn Show, which was televised live on the West Coast. Kinescopes were made for distribution of the programs to other parts of the country since there was no transcontinental coaxial cable until September 1951.

Was Keaton good at his job?
Critics rediscovered Keaton in 1949 and producers occasionally hired him for bigger "prestige" pictures.